CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available" lang="yue" dir="ltr"> <head> <meta charset="UTF-8"> <title>加速度 - 維基百科，自由嘅百科全書</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )zh_yuewikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat": "yue","wgMonthNames":["","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"],"wgRequestId":"edb62d57-d15a-424c-9bba-3b323190990a","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"加速度","wgTitle":"加速度","wgCurRevisionId":2185392,"wgRevisionId":2185392,"wgArticleId":36776,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["有短描述嘅文","力學"],"wgPageViewLanguage":"yue","wgPageContentLanguage":"yue","wgPageContentModel":"wikitext","wgRelevantPageName":"加速度","wgRelevantArticleId":36776,"wgTempUserName":null,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"yue", "pageLanguageDir":"ltr","pageVariantFallbacks":"yue"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q11376","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.gadget.charinsert-styles":"ready","ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading" ,"ext.math.styles":"ready","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.math.popup","ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.HanTS-conv","ext.gadget.refToolbar","ext.gadget.charinsert","ext.gadget.internalLinkHelper-altcolor","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface", "ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=yue&modules=ext.cite.styles%7Cext.math.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=yue&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=yue&modules=ext.gadget.charinsert-styles&only=styles&skin=vector-2022"> <link rel="stylesheet" href="/w/load.php?lang=yue&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/7/7d/Gravity_gravita_grave.gif"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1661"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/7/7d/Gravity_gravita_grave.gif"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="1107"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="886"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="加速度 - 維基百科，自由嘅百科全書"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//zh-yue.m.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6"> <link rel="alternate" type="application/x-wiki" title="編輯" href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="維基百科 (yue)"> <link rel="EditURI" type="application/rsd+xml" href="//zh-yue.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://zh-yue.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.zh-yue"> <link rel="alternate" type="application/atom+xml" title="維基百科嘅Atom Feed" href="/w/index.php?title=Special:%E6%9C%80%E8%BF%91%E4%BF%AE%E6%94%B9&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-加速度 rootpage-加速度 skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">跳去內容</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="站點"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="主目錄" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">主目錄</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">主目錄</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">移去側欄</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">收埋</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> 導覽 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/%E9%A0%AD%E7%89%88" title="睇頭版[z]" accesskey="z"><span>頭版</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Portal:%E7%9B%AE%E9%8C%84"><span>目錄</span></a></li><li id="n-featuredcontent" class="mw-list-item"><a href="/wiki/Portal:%E6%AD%A3%E5%98%A2"><span>正嘢</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:%E6%99%82%E4%BA%BA%E6%99%82%E4%BA%8B" title="提供而家發生嘅事嘅背景資料"><span>時人時事</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:%E6%98%AF%E4%BD%86%E4%B8%80%E7%89%88" title="是但載入一版[x]" accesskey="x"><span>是但一版</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:%E9%97%9C%E6%96%BC"><span>關於維基百科</span></a></li><li id="n-聯絡處" class="mw-list-item"><a href="/wiki/Wikipedia:%E8%81%AF%E7%B5%A1%E6%88%91%E5%93%8B"><span>聯絡處</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> 交流 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-說明書" class="mw-list-item"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents"><span>說明書</span></a></li><li id="n-城市論壇" class="mw-list-item"><a href="/wiki/Wikipedia:%E5%9F%8E%E5%B8%82%E8%AB%96%E5%A3%87"><span>城市論壇</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:%E7%A4%BE%E5%8D%80%E5%A4%A7%E5%A0%82" title="關於呢個計劃，你可以做乜，應該要點做"><span>社區大堂</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:%E6%9C%80%E8%BF%91%E4%BF%AE%E6%94%B9" title="列出呢個 wiki 中嘅最近修改[r]" accesskey="r"><span>最近修改</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/%E9%A0%AD%E7%89%88" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="維基百科" src="/static/images/mobile/copyright/wikipedia-wordmark-zh_yue.svg" style="width: 7.5em; height: 1.625em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-zh_yue.svg" width="120" height="16" style="width: 7.5em; height: 1em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:%E6%90%9C%E7%B4%A2" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="搵維基百科[f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>查嘢</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="搵維基百科" aria-label="搵維基百科" autocapitalize="sentences" title="搵維基百科[f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:搜索"> </div> <button class="cdx-button cdx-search-input__end-button">搵嘢</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="個人架生"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="閱讀設定"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="閱讀設定" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">閱讀設定</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_zh-yue.wikipedia.org&uselang=yue" class=""><span>捐畀維基百科</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:%E9%96%8B%E6%88%B6&returnto=%E5%8A%A0%E9%80%9F%E5%BA%A6" title="建議你開返個戶口簽到，不過唔做都無所謂。" class=""><span>開戶口</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:%E7%B0%BD%E5%88%B0&returnto=%E5%8A%A0%E9%80%9F%E5%BA%A6" title="唔係是必要簽到，但建議你噉做。[o]" accesskey="o" class=""><span>簽到</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out user-links-collapsible-item" title="多啲選項" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="個人架生" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">個人架生</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="用戶選單" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_zh-yue.wikipedia.org&uselang=yue"><span>捐畀維基百科</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E9%96%8B%E6%88%B6&returnto=%E5%8A%A0%E9%80%9F%E5%BA%A6" title="建議你開返個戶口簽到，不過唔做都無所謂。"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>開戶口</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:%E7%B0%BD%E5%88%B0&returnto=%E5%8A%A0%E9%80%9F%E5%BA%A6" title="唔係是必要簽到，但建議你噉做。[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>簽到</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站點"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目錄" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目錄</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移去側欄</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">收埋</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">文頭</div> </a> </li> <li id="toc-定義同特性" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#定義同特性"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>定義同特性</span> </div> </a> <button aria-controls="toc-定義同特性-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>切換去定義同特性細章節</span> </button> <ul id="toc-定義同特性-sublist" class="vector-toc-list"> <li id="toc-平均加速度" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#平均加速度"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>平均加速度</span> </div> </a> <ul id="toc-平均加速度-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-瞬時加速度" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#瞬時加速度"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>瞬時加速度</span> </div> </a> <ul id="toc-瞬時加速度-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-單位" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#單位"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>單位</span> </div> </a> <ul id="toc-單位-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-其他形式" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#其他形式"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>其他形式</span> </div> </a> <ul id="toc-其他形式-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-切向加速度同向心加速度" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#切向加速度同向心加速度"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>切向加速度同向心加速度</span> </div> </a> <ul id="toc-切向加速度同向心加速度-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-睇埋" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#睇埋"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>睇埋</span> </div> </a> <ul id="toc-睇埋-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-引咗" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#引咗"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>引咗</span> </div> </a> <ul id="toc-引咗-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目錄" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="開/收內容一覽" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">開/收內容一覽</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">加速度</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="去睇另一種語文嘅文章。有138種語言版本。" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-138" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">138種語言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Versnelling" title="Versnelling – 南非荷蘭文" lang="af" hreflang="af" data-title="Versnelling" data-language-autonym="Afrikaans" data-language-local-name="南非荷蘭文" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Beschleunigung" title="Beschleunigung – 德文（瑞士）" lang="gsw" hreflang="gsw" data-title="Beschleunigung" data-language-autonym="Alemannisch" data-language-local-name="德文（瑞士）" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8D%8D%E1%8C%A5%E1%8A%95%E1%8C%A5%E1%8A%90%E1%89%B5" title="ፍጥንጥነት – 阿姆哈拉文" lang="am" hreflang="am" data-title="ፍጥንጥነት" data-language-autonym="አማርኛ" data-language-local-name="阿姆哈拉文" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Aceleraci%C3%B3n" title="Aceleración – 阿拉貢文" lang="an" hreflang="an" data-title="Aceleración" data-language-autonym="Aragonés" data-language-local-name="阿拉貢文" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%A4%E0%A5%8D%E0%A4%B5%E0%A4%B0%E0%A4%A3" title="त्वरण – 昂加文" lang="anp" hreflang="anp" data-title="त्वरण" data-language-autonym="अंगिका" data-language-local-name="昂加文" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%B3%D8%A7%D8%B1%D8%B9" title="تسارع – 阿拉伯文" lang="ar" hreflang="ar" data-title="تسارع" data-language-autonym="العربية" data-language-local-name="阿拉伯文" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AA%D8%B3%D8%B1%D9%8A%D8%B9" title="تسريع – 埃及阿拉伯文" lang="arz" hreflang="arz" data-title="تسريع" data-language-autonym="مصرى" data-language-local-name="埃及阿拉伯文" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%A4%E0%A7%8D%E0%A6%AC%E0%A7%B0%E0%A6%A3" title="ত্বৰণ – 阿薩姆文" lang="as" hreflang="as" data-title="ত্বৰণ" data-language-autonym="অসমীয়া" data-language-local-name="阿薩姆文" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Aceleraci%C3%B3n" title="Aceleración – 阿斯圖里亞文" lang="ast" hreflang="ast" data-title="Aceleración" data-language-autonym="Asturianu" data-language-local-name="阿斯圖里亞文" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/T%C9%99cil" title="Təcil – 亞塞拜然文" lang="az" hreflang="az" data-title="Təcil" data-language-autonym="Azərbaycanca" data-language-local-name="亞塞拜然文" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A7%DB%8C%D9%88%D9%85%D9%87" title="ایومه – South Azerbaijani" lang="azb" hreflang="azb" data-title="ایومه" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%A2%D0%B8%D2%99%D0%BB%D3%99%D0%BD%D0%B5%D1%88" title="Тиҙләнеш – 巴什客爾文" lang="ba" hreflang="ba" data-title="Тиҙләнеш" data-language-autonym="Башҡортса" data-language-local-name="巴什客爾文" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Akselerasyon" title="Akselerasyon – Central Bikol" lang="bcl" hreflang="bcl" data-title="Akselerasyon" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9F%D0%B0%D1%81%D0%BA%D0%B0%D1%80%D1%8D%D0%BD%D0%BD%D0%B5" title="Паскарэнне – 白俄羅斯文" lang="be" hreflang="be" data-title="Паскарэнне" data-language-autonym="Беларуская" data-language-local-name="白俄羅斯文" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9F%D0%B0%D1%81%D0%BA%D0%B0%D1%80%D1%8D%D0%BD%D1%8C%D0%BD%D0%B5" title="Паскарэньне – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Паскарэньне" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A3%D1%81%D0%BA%D0%BE%D1%80%D0%B5%D0%BD%D0%B8%D0%B5" title="Ускорение – 保加利亞文" lang="bg" hreflang="bg" data-title="Ускорение" data-language-autonym="Български" data-language-local-name="保加利亞文" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%B5%E0%A5%87%E0%A4%97" title="परवेग – Bhojpuri" lang="bh" hreflang="bh" data-title="परवेग" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A4%E0%A7%8D%E0%A6%AC%E0%A6%B0%E0%A6%A3" title="ত্বরণ – 孟加拉文" lang="bn" hreflang="bn" data-title="ত্বরণ" data-language-autonym="বাংলা" data-language-local-name="孟加拉文" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%98%E0%BE%B1%E0%BD%B4%E0%BD%A2%E0%BC%8B%E0%BD%A6%E0%BE%A3%E0%BD%BC%E0%BD%93%E0%BC%8D" title="མྱུར་སྣོན། – 藏文" lang="bo" hreflang="bo" data-title="མྱུར་སྣོན།" data-language-autonym="བོད་ཡིག" data-language-local-name="藏文" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-bpy mw-list-item"><a href="https://bpy.wikipedia.org/wiki/%E0%A6%A4%E0%A7%8D%E0%A6%AC%E0%A6%B0%E0%A6%A3" title="ত্বরণ – 比什奴普萊利亞文" lang="bpy" hreflang="bpy" data-title="ত্বরণ" data-language-autonym="বিষ্ণুপ্রিয়া মণিপুরী" data-language-local-name="比什奴普萊利亞文" class="interlanguage-link-target"><span>বিষ্ণুপ্রিয়া মণিপুরী</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Ubrzanje" title="Ubrzanje – 波士尼亞文" lang="bs" hreflang="bs" data-title="Ubrzanje" data-language-autonym="Bosanski" data-language-local-name="波士尼亞文" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A5%D1%83%D1%80%D0%B4%D0%B0%D0%B4%D1%85%D0%B0%D0%BB" title="Хурдадхал – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Хурдадхал" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Acceleraci%C3%B3" title="Acceleració – 加泰羅尼亞文" lang="ca" hreflang="ca" data-title="Acceleració" data-language-autonym="Català" data-language-local-name="加泰羅尼亞文" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/G%C4%83-s%C3%B3k-d%C3%B4" title="Gă-sók-dô – Mindong" lang="cdo" hreflang="cdo" data-title="Gă-sók-dô" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%84%DB%95%D8%B2" title="لەز – 索拉尼庫爾德文" lang="ckb" hreflang="ckb" data-title="لەز" data-language-autonym="کوردی" data-language-local-name="索拉尼庫爾德文" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Zrychlen%C3%AD" title="Zrychlení – 捷克文" lang="cs" hreflang="cs" data-title="Zrychlení" data-language-autonym="Čeština" data-language-local-name="捷克文" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A5%C4%83%D0%B2%C4%83%D1%80%D1%82%D0%BB%D0%B0%D0%BD%D1%83" title="Хăвăртлану – 楚瓦什文" lang="cv" hreflang="cv" data-title="Хăвăртлану" data-language-autonym="Чӑвашла" data-language-local-name="楚瓦什文" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Cyflymiad" title="Cyflymiad – 威爾斯文" lang="cy" hreflang="cy" data-title="Cyflymiad" data-language-autonym="Cymraeg" data-language-local-name="威爾斯文" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Acceleration" title="Acceleration – 丹麥文" lang="da" hreflang="da" data-title="Acceleration" data-language-autonym="Dansk" data-language-local-name="丹麥文" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Beschleunigung" title="Beschleunigung – 德文" lang="de" hreflang="de" data-title="Beschleunigung" data-language-autonym="Deutsch" data-language-local-name="德文" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%95%CF%80%CE%B9%CF%84%CE%AC%CF%87%CF%85%CE%BD%CF%83%CE%B7" title="Επιτάχυνση – 希臘文" lang="el" hreflang="el" data-title="Επιτάχυνση" data-language-autonym="Ελληνικά" data-language-local-name="希臘文" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/Azelerazi%C3%A5n" title="Azeleraziån – Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title="Azeleraziån" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Acceleration" title="Acceleration – 英文" lang="en" hreflang="en" data-title="Acceleration" data-language-autonym="English" data-language-local-name="英文" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Akcelo" title="Akcelo – 世界文" lang="eo" hreflang="eo" data-title="Akcelo" data-language-autonym="Esperanto" data-language-local-name="世界文" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Aceleraci%C3%B3n" title="Aceleración – 西班牙文" lang="es" hreflang="es" data-title="Aceleración" data-language-autonym="Español" data-language-local-name="西班牙文" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Kiirendus" title="Kiirendus – 愛沙尼亞文" lang="et" hreflang="et" data-title="Kiirendus" data-language-autonym="Eesti" data-language-local-name="愛沙尼亞文" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Azelerazio" title="Azelerazio – 巴斯克文" lang="eu" hreflang="eu" data-title="Azelerazio" data-language-autonym="Euskara" data-language-local-name="巴斯克文" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B4%D8%AA%D8%A7%D8%A8" title="شتاب – 波斯文" lang="fa" hreflang="fa" data-title="شتاب" data-language-autonym="فارسی" data-language-local-name="波斯文" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Kiihtyvyys" title="Kiihtyvyys – 芬蘭文" lang="fi" hreflang="fi" data-title="Kiihtyvyys" data-language-autonym="Suomi" data-language-local-name="芬蘭文" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Kip%C3%B5ndus" title="Kipõndus – 佛羅文" lang="vro" hreflang="vro" data-title="Kipõndus" data-language-autonym="Võro" data-language-local-name="佛羅文" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Acc%C3%A9l%C3%A9ration" title="Accélération – 法文" lang="fr" hreflang="fr" data-title="Accélération" data-language-autonym="Français" data-language-local-name="法文" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Faardferanrang" title="Faardferanrang – 北弗里西亞文" lang="frr" hreflang="frr" data-title="Faardferanrang" data-language-autonym="Nordfriisk" data-language-local-name="北弗里西亞文" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Fersnelling_(natuerkunde)" title="Fersnelling (natuerkunde) – 西弗里西亞文" lang="fy" hreflang="fy" data-title="Fersnelling (natuerkunde)" data-language-autonym="Frysk" data-language-local-name="西弗里西亞文" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Luasgh%C3%A9ar%C3%BA" title="Luasghéarú – 愛爾蘭文" lang="ga" hreflang="ga" data-title="Luasghéarú" data-language-autonym="Gaeilge" data-language-local-name="愛爾蘭文" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Aceleraci%C3%B3n" title="Aceleración – 加里西亞文" lang="gl" hreflang="gl" data-title="Aceleración" data-language-autonym="Galego" data-language-local-name="加里西亞文" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/%C3%91emoag%CC%83e" title="Ñemoag̃e – 瓜拉尼文" lang="gn" hreflang="gn" data-title="Ñemoag̃e" data-language-autonym="Avañe'ẽ" data-language-local-name="瓜拉尼文" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Siyraghey" title="Siyraghey – 曼島文" lang="gv" hreflang="gv" data-title="Siyraghey" data-language-autonym="Gaelg" data-language-local-name="曼島文" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/K%C3%A2-suk-thu" title="Kâ-suk-thu – 客家話" lang="hak" hreflang="hak" data-title="Kâ-suk-thu" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="客家話" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%AA%D7%90%D7%95%D7%A6%D7%94" title="תאוצה – 希伯來文" lang="he" hreflang="he" data-title="תאוצה" data-language-autonym="עברית" data-language-local-name="希伯來文" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A4%E0%A5%8D%E0%A4%B5%E0%A4%B0%E0%A4%A3" title="त्वरण – 北印度文" lang="hi" hreflang="hi" data-title="त्वरण" data-language-autonym="हिन्दी" data-language-local-name="北印度文" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Acceleration" title="Acceleration – 斐濟印地文" lang="hif" hreflang="hif" data-title="Acceleration" data-language-autonym="Fiji Hindi" data-language-local-name="斐濟印地文" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Ubrzanje" title="Ubrzanje – 克羅埃西亞文" lang="hr" hreflang="hr" data-title="Ubrzanje" data-language-autonym="Hrvatski" data-language-local-name="克羅埃西亞文" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Akselerasyon_santrip%C3%A8d" title="Akselerasyon santripèd – 海地文" lang="ht" hreflang="ht" data-title="Akselerasyon santripèd" data-language-autonym="Kreyòl ayisyen" data-language-local-name="海地文" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Gyorsul%C3%A1s" title="Gyorsulás – 匈牙利文" lang="hu" hreflang="hu" data-title="Gyorsulás" data-language-autonym="Magyar" data-language-local-name="匈牙利文" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D6%80%D5%A1%D5%A3%D5%A1%D6%81%D5%B8%D6%82%D5%B4" title="Արագացում – 亞美尼亞文" lang="hy" hreflang="hy" data-title="Արագացում" data-language-autonym="Հայերեն" data-language-local-name="亞美尼亞文" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Acceleration" title="Acceleration – 國際文" lang="ia" hreflang="ia" data-title="Acceleration" data-language-autonym="Interlingua" data-language-local-name="國際文" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Percepatan" title="Percepatan – 印尼文" lang="id" hreflang="id" data-title="Percepatan" data-language-autonym="Bahasa Indonesia" data-language-local-name="印尼文" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Acelero" title="Acelero – 伊多文" lang="io" hreflang="io" data-title="Acelero" data-language-autonym="Ido" data-language-local-name="伊多文" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Hr%C3%B6%C3%B0un" title="Hröðun – 冰島文" lang="is" hreflang="is" data-title="Hröðun" data-language-autonym="Íslenska" data-language-local-name="冰島文" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Accelerazione" title="Accelerazione – 義大利文" lang="it" hreflang="it" data-title="Accelerazione" data-language-autonym="Italiano" data-language-local-name="義大利文" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="加速度 – 日文" lang="ja" hreflang="ja" data-title="加速度" data-language-autonym="日本語" data-language-local-name="日文" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%A9%E1%83%A5%E1%83%90%E1%83%A0%E1%83%94%E1%83%91%E1%83%90" title="აჩქარება – 喬治亞文" lang="ka" hreflang="ka" data-title="აჩქარება" data-language-autonym="ქართული" data-language-local-name="喬治亞文" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Ki%C9%96i_ki%C9%96i_wonuu_(acc%C3%A9l%C3%A9ration)" title="Kiɖi kiɖi wonuu (accélération) – Kabiye" lang="kbp" hreflang="kbp" data-title="Kiɖi kiɖi wonuu (accélération)" data-language-autonym="Kabɩyɛ" data-language-local-name="Kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D2%AE%D0%B4%D0%B5%D1%83" title="Үдеу – 哈薩克文" lang="kk" hreflang="kk" data-title="Үдеу" data-language-autonym="Қазақша" data-language-local-name="哈薩克文" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%9F%E1%9F%86%E1%9E%91%E1%9E%BB%E1%9F%87" title="សំទុះ – 高棉文" lang="km" hreflang="km" data-title="សំទុះ" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="高棉文" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B0%80%EC%86%8D%EB%8F%84" title="가속도 – 韓文" lang="ko" hreflang="ko" data-title="가속도" data-language-autonym="한국어" data-language-local-name="韓文" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-krc badge-Q17437798 badge-goodarticle mw-list-item" title="好文"><a href="https://krc.wikipedia.org/wiki/%D0%A2%D0%B5%D1%80%D0%BA%D0%BB%D0%B5%D0%BD%D0%B8%D1%83" title="Терклениу – 卡拉柴-包爾卡爾文" lang="krc" hreflang="krc" data-title="Терклениу" data-language-autonym="Къарачай-малкъар" data-language-local-name="卡拉柴-包爾卡爾文" class="interlanguage-link-target"><span>Къарачай-малкъар</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Lezdan_(fiz%C3%AEk)" title="Lezdan (fizîk) – 庫爾德文" lang="ku" hreflang="ku" data-title="Lezdan (fizîk)" data-language-autonym="Kurdî" data-language-local-name="庫爾德文" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Uskisheans" title="Uskisheans – 康瓦耳文" lang="kw" hreflang="kw" data-title="Uskisheans" data-language-autonym="Kernowek" data-language-local-name="康瓦耳文" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%AB%D0%BB%D0%B4%D0%B0%D0%BC%D0%B4%D0%B0%D0%BD%D1%83%D1%83" title="Ылдамдануу – 吉爾吉斯文" lang="ky" hreflang="ky" data-title="Ылдамдануу" data-language-autonym="Кыргызча" data-language-local-name="吉爾吉斯文" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Acceleratio" title="Acceleratio – 拉丁文" lang="la" hreflang="la" data-title="Acceleratio" data-language-autonym="Latina" data-language-local-name="拉丁文" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Aselera" title="Aselera – 新共同語言" lang="lfn" hreflang="lfn" data-title="Aselera" data-language-autonym="Lingua Franca Nova" data-language-local-name="新共同語言" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Acelerazion" title="Acelerazion – 倫巴底文" lang="lmo" hreflang="lmo" data-title="Acelerazion" data-language-autonym="Lombard" data-language-local-name="倫巴底文" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Pagreitis" title="Pagreitis – 立陶宛文" lang="lt" hreflang="lt" data-title="Pagreitis" data-language-autonym="Lietuvių" data-language-local-name="立陶宛文" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pa%C4%81trin%C4%81jums" title="Paātrinājums – 拉脫維亞文" lang="lv" hreflang="lv" data-title="Paātrinājums" data-language-autonym="Latviešu" data-language-local-name="拉脫維亞文" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%97%D0%B0%D0%B1%D1%80%D0%B7%D1%83%D0%B2%D0%B0%D1%9A%D0%B5" title="Забрзување – 馬其頓文" lang="mk" hreflang="mk" data-title="Забрзување" data-language-autonym="Македонски" data-language-local-name="馬其頓文" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%A4%E0%B5%8D%E0%B4%B5%E0%B4%B0%E0%B4%A3%E0%B4%82" title="ത്വരണം – 馬來亞拉姆文" lang="ml" hreflang="ml" data-title="ത്വരണം" data-language-autonym="മലയാളം" data-language-local-name="馬來亞拉姆文" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D1%83%D1%80%D0%B4%D0%B0%D1%82%D0%B3%D0%B0%D0%BB" title="Хурдатгал – 蒙古文" lang="mn" hreflang="mn" data-title="Хурдатгал" data-language-autonym="Монгол" data-language-local-name="蒙古文" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%B5%E0%A5%87%E0%A4%97" title="प्रवेग – 馬拉地文" lang="mr" hreflang="mr" data-title="प्रवेग" data-language-autonym="मराठी" data-language-local-name="馬拉地文" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pecutan" title="Pecutan – 馬來文" lang="ms" hreflang="ms" data-title="Pecutan" data-language-autonym="Bahasa Melayu" data-language-local-name="馬來文" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%9C%E1%80%BB%E1%80%84%E1%80%BA%E1%80%95%E1%80%BC%E1%80%B1%E1%80%AC%E1%80%84%E1%80%BA%E1%80%B8%E1%80%94%E1%80%BE%E1%80%AF%E1%80%94%E1%80%BA%E1%80%B8" title="အလျင်ပြောင်းနှုန်း – 緬甸文" lang="my" hreflang="my" data-title="အလျင်ပြောင်းနှုန်း" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="緬甸文" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-myv mw-list-item"><a href="https://myv.wikipedia.org/wiki/%D0%9A%D0%B0%D0%BF%D1%88%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%B0" title="Капшавтома – 厄爾茲亞文" lang="myv" hreflang="myv" data-title="Капшавтома" data-language-autonym="Эрзянь" data-language-local-name="厄爾茲亞文" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-nap mw-list-item"><a href="https://nap.wikipedia.org/wiki/Accellerazione" title="Accellerazione – 拿波里文" lang="nap" hreflang="nap" data-title="Accellerazione" data-language-autonym="Napulitano" data-language-local-name="拿波里文" class="interlanguage-link-target"><span>Napulitano</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Versnellen" title="Versnellen – 低地德文" lang="nds" hreflang="nds" data-title="Versnellen" data-language-autonym="Plattdüütsch" data-language-local-name="低地德文" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%B5%E0%A5%87%E0%A4%97" title="प्रवेग – 尼泊爾文" lang="ne" hreflang="ne" data-title="प्रवेग" data-language-autonym="नेपाली" data-language-local-name="尼泊爾文" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%B5%E0%A5%87%E0%A4%97" title="प्रवेग – 尼瓦爾文" lang="new" hreflang="new" data-title="प्रवेग" data-language-autonym="नेपाल भाषा" data-language-local-name="尼瓦爾文" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Versnelling_(natuurkunde)" title="Versnelling (natuurkunde) – 荷蘭文" lang="nl" hreflang="nl" data-title="Versnelling (natuurkunde)" data-language-autonym="Nederlands" data-language-local-name="荷蘭文" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Akselerasjon" title="Akselerasjon – 耐諾斯克挪威文" lang="nn" hreflang="nn" data-title="Akselerasjon" data-language-autonym="Norsk nynorsk" data-language-local-name="耐諾斯克挪威文" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Akselerasjon" title="Akselerasjon – 巴克摩挪威文" lang="nb" hreflang="nb" data-title="Akselerasjon" data-language-autonym="Norsk bokmål" data-language-local-name="巴克摩挪威文" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nov mw-list-item"><a href="https://nov.wikipedia.org/wiki/Akseleratione" title="Akseleratione – 諾維亞文" lang="nov" hreflang="nov" data-title="Akseleratione" data-language-autonym="Novial" data-language-local-name="諾維亞文" class="interlanguage-link-target"><span>Novial</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Acceleracion" title="Acceleracion – 奧克西坦文" lang="oc" hreflang="oc" data-title="Acceleracion" data-language-autonym="Occitan" data-language-local-name="奧克西坦文" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AA%E0%A9%8D%E0%A8%B0%E0%A8%B5%E0%A9%87%E0%A8%97" title="ਪ੍ਰਵੇਗ – 旁遮普文" lang="pa" hreflang="pa" data-title="ਪ੍ਰਵੇਗ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="旁遮普文" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pag mw-list-item"><a href="https://pag.wikipedia.org/wiki/Akpelusyon" title="Akpelusyon – 潘加辛文" lang="pag" hreflang="pag" data-title="Akpelusyon" data-language-autonym="Pangasinan" data-language-local-name="潘加辛文" class="interlanguage-link-target"><span>Pangasinan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Przyspieszenie" title="Przyspieszenie – 波蘭文" lang="pl" hreflang="pl" data-title="Przyspieszenie" data-language-autonym="Polski" data-language-local-name="波蘭文" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Acelerassion" title="Acelerassion – 皮埃蒙特文" lang="pms" hreflang="pms" data-title="Acelerassion" data-language-autonym="Piemontèis" data-language-local-name="皮埃蒙特文" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%D8%B3%D8%B1%D8%A7%D8%B9" title="اسراع – Western Punjabi" lang="pnb" hreflang="pnb" data-title="اسراع" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%B3%D8%B1%D8%B9%D8%AA" title="سرعت – 普什圖文" lang="ps" hreflang="ps" data-title="سرعت" data-language-autonym="پښتو" data-language-local-name="普什圖文" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Acelera%C3%A7%C3%A3o" title="Aceleração – 葡萄牙文" lang="pt" hreflang="pt" data-title="Aceleração" data-language-autonym="Português" data-language-local-name="葡萄牙文" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/P%27ikwachiy" title="P'ikwachiy – 蓋楚瓦文" lang="qu" hreflang="qu" data-title="P'ikwachiy" data-language-autonym="Runa Simi" data-language-local-name="蓋楚瓦文" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Accelera%C8%9Bie" title="Accelerație – 羅馬尼亞文" lang="ro" hreflang="ro" data-title="Accelerație" data-language-autonym="Română" data-language-local-name="羅馬尼亞文" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A3%D1%81%D0%BA%D0%BE%D1%80%D0%B5%D0%BD%D0%B8%D0%B5" title="Ускорение – 俄文" lang="ru" hreflang="ru" data-title="Ускорение" data-language-autonym="Русский" data-language-local-name="俄文" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%90%D0%BA%D1%86%D0%B5%D0%BB%D0%B5%D1%80%D0%B0%D1%86%D1%96%D1%8F" title="Акцелерація – 盧森尼亞文" lang="rue" hreflang="rue" data-title="Акцелерація" data-language-autonym="Русиньскый" data-language-local-name="盧森尼亞文" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Atzellerada" title="Atzellerada – 撒丁文" lang="sc" hreflang="sc" data-title="Atzellerada" data-language-autonym="Sardu" data-language-local-name="撒丁文" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Accilirazzioni" title="Accilirazzioni – 西西里文" lang="scn" hreflang="scn" data-title="Accilirazzioni" data-language-autonym="Sicilianu" data-language-local-name="西西里文" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A7%D8%B3%D8%B1%D8%A7%D8%B9" title="اسراع – 信德文" lang="sd" hreflang="sd" data-title="اسراع" data-language-autonym="سنڌي" data-language-local-name="信德文" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Ubrzanje" title="Ubrzanje – 塞爾維亞克羅埃西亞文" lang="sh" hreflang="sh" data-title="Ubrzanje" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="塞爾維亞克羅埃西亞文" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%AD%E0%B7%8A%E0%B7%80%E0%B6%BB%E0%B6%AB%E0%B6%BA" title="ත්වරණය – 僧伽羅文" lang="si" hreflang="si" data-title="ත්වරණය" data-language-autonym="සිංහල" data-language-local-name="僧伽羅文" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Acceleration" title="Acceleration – Simple English" lang="en-simple" hreflang="en-simple" data-title="Acceleration" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Zr%C3%BDchlenie" title="Zrýchlenie – 斯洛伐克文" lang="sk" hreflang="sk" data-title="Zrýchlenie" data-language-autonym="Slovenčina" data-language-local-name="斯洛伐克文" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Pospe%C5%A1ek" title="Pospešek – 斯洛維尼亞文" lang="sl" hreflang="sl" data-title="Pospešek" data-language-autonym="Slovenščina" data-language-local-name="斯洛維尼亞文" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Rufangu" title="Rufangu – 塞內加爾文" lang="sn" hreflang="sn" data-title="Rufangu" data-language-autonym="ChiShona" data-language-local-name="塞內加爾文" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Dardargelinta" title="Dardargelinta – 索馬利文" lang="so" hreflang="so" data-title="Dardargelinta" data-language-autonym="Soomaaliga" data-language-local-name="索馬利文" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Nxitimi" title="Nxitimi – 阿爾巴尼亞文" lang="sq" hreflang="sq" data-title="Nxitimi" data-language-autonym="Shqip" data-language-local-name="阿爾巴尼亞文" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A3%D0%B1%D1%80%D0%B7%D0%B0%D1%9A%D0%B5" title="Убрзање – 塞爾維亞文" lang="sr" hreflang="sr" data-title="Убрзање" data-language-autonym="Српски / srpski" data-language-local-name="塞爾維亞文" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Aksel%C3%A9rasi" title="Akselérasi – 巽他文" lang="su" hreflang="su" data-title="Akselérasi" data-language-autonym="Sunda" data-language-local-name="巽他文" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Acceleration" title="Acceleration – 瑞典文" lang="sv" hreflang="sv" data-title="Acceleration" data-language-autonym="Svenska" data-language-local-name="瑞典文" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Mchapuko" title="Mchapuko – 史瓦希里文" lang="sw" hreflang="sw" data-title="Mchapuko" data-language-autonym="Kiswahili" data-language-local-name="史瓦希里文" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-szl mw-list-item"><a href="https://szl.wikipedia.org/wiki/Szw%C5%AFng" title="Szwůng – 西利西亞文" lang="szl" hreflang="szl" data-title="Szwůng" data-language-autonym="Ślůnski" data-language-local-name="西利西亞文" class="interlanguage-link-target"><span>Ślůnski</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AE%E0%AF%81%E0%AE%9F%E0%AF%81%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%AE%E0%AF%8D" title="முடுக்கம் – 坦米爾文" lang="ta" hreflang="ta" data-title="முடுக்கம்" data-language-autonym="தமிழ்" data-language-local-name="坦米爾文" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%A4%E0%B1%8D%E0%B0%B5%E0%B0%B0%E0%B0%A3%E0%B0%AE%E0%B1%81" title="త్వరణము – 泰盧固文" lang="te" hreflang="te" data-title="త్వరణము" data-language-autonym="తెలుగు" data-language-local-name="泰盧固文" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B9%80%E0%B8%A3%E0%B9%88%E0%B8%87" title="ความเร่ง – 泰文" lang="th" hreflang="th" data-title="ความเร่ง" data-language-autonym="ไทย" data-language-local-name="泰文" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Arangkada" title="Arangkada – 塔加路族文" lang="tl" hreflang="tl" data-title="Arangkada" data-language-autonym="Tagalog" data-language-local-name="塔加路族文" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/%C4%B0vme" title="İvme – 土耳其文" lang="tr" hreflang="tr" data-title="İvme" data-language-autonym="Türkçe" data-language-local-name="土耳其文" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%A2%D0%B8%D0%B7%D0%BB%D3%99%D0%BD%D0%B5%D1%88" title="Тизләнеш – 韃靼文" lang="tt" hreflang="tt" data-title="Тизләнеш" data-language-autonym="Татарча / tatarça" data-language-local-name="韃靼文" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-tyv mw-list-item"><a href="https://tyv.wikipedia.org/wiki/%D0%94%D2%AF%D1%80%D0%B3%D0%B5%D0%B4%D1%8D%D1%8D%D1%88%D0%BA%D0%B8%D0%BD" title="Дүргедээшкин – 土凡文" lang="tyv" hreflang="tyv" data-title="Дүргедээшкин" data-language-autonym="Тыва дыл" data-language-local-name="土凡文" class="interlanguage-link-target"><span>Тыва дыл</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D1%80%D0%B8%D1%81%D0%BA%D0%BE%D1%80%D0%B5%D0%BD%D0%BD%D1%8F" title="Прискорення – 烏克蘭文" lang="uk" hreflang="uk" data-title="Прискорення" data-language-autonym="Українська" data-language-local-name="烏克蘭文" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A7%D8%B3%D8%B1%D8%A7%D8%B9" title="اسراع – 烏都文" lang="ur" hreflang="ur" data-title="اسراع" data-language-autonym="اردو" data-language-local-name="烏都文" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Tezlanish" title="Tezlanish – 烏茲別克文" lang="uz" hreflang="uz" data-title="Tezlanish" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="烏茲別克文" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Acelerasion" title="Acelerasion – 威尼斯文" lang="vec" hreflang="vec" data-title="Acelerasion" data-language-autonym="Vèneto" data-language-local-name="威尼斯文" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Pigustuz" title="Pigustuz – 維普森文" lang="vep" hreflang="vep" data-title="Pigustuz" data-language-autonym="Vepsän kel’" data-language-local-name="維普森文" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Gia_t%E1%BB%91c" title="Gia tốc – 越南文" lang="vi" hreflang="vi" data-title="Gia tốc" data-language-autonym="Tiếng Việt" data-language-local-name="越南文" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Akselerasyon" title="Akselerasyon – 瓦瑞文" lang="war" hreflang="war" data-title="Akselerasyon" data-language-autonym="Winaray" data-language-local-name="瓦瑞文" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="加速度 – 吳語" lang="wuu" hreflang="wuu" data-title="加速度" data-language-autonym="吴语" data-language-local-name="吳語" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A4%D7%90%D7%A8%D7%92%D7%99%D7%9B%D7%A2%D7%A8%D7%95%D7%A0%D7%92" title="פארגיכערונג – 意第緒文" lang="yi" hreflang="yi" data-title="פארגיכערונג" data-language-autonym="ייִדיש" data-language-local-name="意第緒文" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%C3%8Cy%C3%A1ra" title="Ìyára – 約魯巴文" lang="yo" hreflang="yo" data-title="Ìyára" data-language-autonym="Yorùbá" data-language-local-name="約魯巴文" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="加速度 – 中文" lang="zh" hreflang="zh" data-title="加速度" data-language-autonym="中文" data-language-local-name="中文" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="加速度 – 文言文" lang="lzh" hreflang="lzh" data-title="加速度" data-language-autonym="文言" data-language-local-name="文言文" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Ka-sok-t%C5%8D%CD%98" title="Ka-sok-tō͘ – 閩南語" lang="nan" hreflang="nan" data-title="Ka-sok-tō͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="閩南語" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11376#sitelinks-wikipedia" title="改跨語言拎" class="wbc-editpage">改拎</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="空間名"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="睇吓內容頁[c]" accesskey="c"><span>文章</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:%E5%8A%A0%E9%80%9F%E5%BA%A6" rel="discussion" title="關於內容頁嘅討論[t]" accesskey="t"><span>討論</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="改語言變體" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">粵語</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="外觀"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6"><span>閱</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit" title="改呢版嘅代碼[e]" accesskey="e"><span>改</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=history" title="呢一頁之前嘅修訂[h]" accesskey="h"><span>睇返紀錄</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="頁面工具"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="架撐" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">架撐</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">架撐</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">移去側欄</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">收埋</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="多啲選項" > <div class="vector-menu-heading"> 動作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/%E5%8A%A0%E9%80%9F%E5%BA%A6"><span>閱</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit" title="改呢版嘅代碼[e]" accesskey="e"><span>改</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=history"><span>睇返紀錄</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 基本 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:%E9%82%8A%E5%BA%A6%E9%8F%88%E5%8E%BB%E5%91%A2%E7%89%88/%E5%8A%A0%E9%80%9F%E5%BA%A6" title="列出所有連接過嚟呢度嘅頁面[j]" accesskey="j"><span>有乜連過嚟</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:%E5%A4%96%E9%8F%88%E4%BF%AE%E6%94%B9/%E5%8A%A0%E9%80%9F%E5%BA%A6" rel="nofollow" title="由呢版連出去嘅版嘅最近修改[k]" accesskey="k"><span>連結頁嘅更改</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Project:%E4%B8%8A%E8%BC%89" title="上載檔案[u]" accesskey="u"><span>上載檔案</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:%E5%B0%88%E9%96%80%E7%89%88" title="所有專門版一覽[q]" accesskey="q"><span>專門版</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&oldid=2185392" title="呢版呢個修訂嘅永久網址"><span>固定連結</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=info" title="多啲同呢版有拏褦嘅資料"><span>此版明細</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:%E5%BC%95%E7%94%A8&page=%E5%8A%A0%E9%80%9F%E5%BA%A6&id=2185392&wpFormIdentifier=titleform" title="點樣引用呢頁嘅資訊"><span>引用呢篇文</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fzh-yue.wikipedia.org%2Fwiki%2F%25E5%258A%25A0%25E9%2580%259F%25E5%25BA%25A6"><span>攞短網址</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fzh-yue.wikipedia.org%2Fwiki%2F%25E5%258A%25A0%25E9%2580%259F%25E5%25BA%25A6"><span>下載QR code</span></a></li> </ul> </div> </div> <div id="p-electronpdfservice-sidebar-portlet-heading" class="vector-menu mw-portlet mw-portlet-electronpdfservice-sidebar-portlet-heading" > <div class="vector-menu-heading"> 打印/匯出 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="electron-print_pdf" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=show-download-screen"><span>下載PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="呢一版印得嘅版本[p]" accesskey="p"><span>印得嘅版本</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 第啲維基項目 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Acceleration" hreflang="en"><span>維基同享</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11376" title="連到接住資料儲存庫嘅項目[g]" accesskey="g"><span>維基數據項</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="頁面工具"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="閱讀設定"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">閱讀設定</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">移去側欄</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">收埋</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出自維基百科，自由嘅百科全書</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="yue" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">速度變化率<a href="/w/index.php?title=Template:SHORTDESC:%E9%80%9F%E5%BA%A6%E8%AE%8A%E5%8C%96%E7%8E%87&action=edit&redlink=1" class="new" title="Template:SHORTDESC:速度變化率 (無呢版)">Template:SHORTDESC:速度變化率</a></div> <div role="note" class="hatnote"><span typeof="mw:File"><a href="/wiki/Wikipedia:%E6%90%9E%E6%B8%85%E6%A5%9A" title="Wikipedia:搞清楚"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/25px-Disambig_gray.svg.png" decoding="async" width="25" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/38px-Disambig_gray.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/50px-Disambig_gray.svg.png 2x" data-file-width="220" data-file-height="168" /></a></span>  呢篇文章講嘅係物理學入面嘅加速度。想搵其他用法，請睇「<b><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6_(%E6%90%9E%E6%B8%85%E6%A5%9A)&action=edit&redlink=1" class="new" title="加速度 (搞清楚) (無呢版)">加速度 (搞清楚)</a></b>」。</div> <div role="note" class="hatnote"><span typeof="mw:File"><a href="/wiki/Wikipedia:%E6%90%9E%E6%B8%85%E6%A5%9A" title="Wikipedia:搞清楚"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/25px-Disambig_gray.svg.png" decoding="async" width="25" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/38px-Disambig_gray.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Disambig_gray.svg/50px-Disambig_gray.svg.png 2x" data-file-width="220" data-file-height="168" /></a></span>  「加速」跳轉到呢度。想搵其他用法，請睇「<b><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F_(%E6%90%9E%E6%B8%85%E6%A5%9A)&action=edit&redlink=1" class="new" title="加速 (搞清楚) (無呢版)">加速 (搞清楚)</a></b>」。</div> <table class="infobox" style="width:22em"><tbody><tr><th colspan="2" style="text-align:center;font-size:125%;font-weight:bold">加速度</th></tr><tr><td colspan="2" style="text-align:center"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Gravity_gravita_grave.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Gravity_gravita_grave.gif/220px-Gravity_gravita_grave.gif" decoding="async" width="220" height="304" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/7/7d/Gravity_gravita_grave.gif 1.5x" data-file-width="289" data-file-height="400" /></a></span><div><div style="padding:0.1em 0;line-height:1.2em;">喺真空（冇<a href="/w/index.php?title=%E9%98%BB%E5%8A%9B_(%E7%89%A9%E7%90%86%E5%AD%B8)&action=edit&redlink=1" class="new" title="阻力 (物理學) (無呢版)">空氣阻力</a>嘅情況），畀地球吸引嘅物件會以一個穩定嘅速度加快。</div></div></td></tr><tr><th scope="row" style=""><div style="padding:0.1em 0;line-height:1.2em;">Common symbols</div></th><td style=""><b>a</b></td></tr><tr><th scope="row" style=""><a href="/w/index.php?title=SI_unit&action=edit&redlink=1" class="new" title="SI unit (無呢版)">SI unit</a></th><td style=""><a href="/wiki/%E7%B1%B3%E6%AF%8F%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A7%92" title="米每二次方秒">m/s<sup><small>2</small></sup>, m·s<sup><small>−2</small></sup>, m s<sup><small>−2</small></sup></a></td></tr><tr><th scope="row" style=""><div style="padding:0.1em 0;line-height:1.2em;">Derivations from<br />other quantities</div></th><td style=""><span class="mwe-math-element" data-qid="Q11376"><a href="/w/index.php?title=Special:MathWikibase&qid=Q11376" style="color:inherit;"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msup> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">x</mi> </mrow> </mrow> <mrow> <mi>d</mi> <msup> <mi>t</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1760b1620e8d07692ecfb879abb37fad5a34f238" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:15.479ex; height:6.009ex;" alt="{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}"></a></span></td></tr><tr><th scope="row" style=""><a href="/w/index.php?title=Dimensional_analysis&action=edit&redlink=1" class="new" title="Dimensional analysis (無呢版)">Dimension</a></th><td style=""><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {L}}{\mathsf {T}}^{-2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="sans-serif">L</mi> </mrow> </mrow> <msup> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="sans-serif">T</mi> </mrow> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>2</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\mathsf {L}}{\mathsf {T}}^{-2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e2639355e0e107e11e7d06c0f772f155c24a0ed1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:5.176ex; height:2.676ex;" alt="{\displaystyle {\mathsf {L}}{\mathsf {T}}^{-2}}"></span></td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:DonPrudhommeFire1991KennyBernstein.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/DonPrudhommeFire1991KennyBernstein.jpg/310px-DonPrudhommeFire1991KennyBernstein.jpg" decoding="async" width="310" height="167" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/DonPrudhommeFire1991KennyBernstein.jpg/465px-DonPrudhommeFire1991KennyBernstein.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/6/6a/DonPrudhommeFire1991KennyBernstein.jpg 2x" data-file-width="600" data-file-height="324" /></a><figcaption><a href="/w/index.php?title=%E7%9B%B4%E7%B7%9A%E5%8A%A0%E9%80%9F%E8%B3%BD&action=edit&redlink=1" class="new" title="直線加速賽 (無呢版)">直線加速賽</a>係一種運動，專門建造嘅車輛喺靜止狀態開始比賽，睇邊架車加速最快。</figcaption></figure> <p>喺<a href="/wiki/%E5%8A%9B%E5%AD%B8" title="力學">力學</a>入面，「<b>加速度</b>」係一個物體嘅<a href="/wiki/%E9%80%9F%E5%BA%A6" title="速度">速度</a>隨時間嘅<a href="/w/index.php?title=%E8%AE%8A%E5%8C%96%E7%8E%87&action=edit&redlink=1" class="new" title="變化率 (無呢版)">變化率</a>。加速度係<a href="/wiki/%E9%81%8B%E5%8B%95%E5%AD%B8" title="運動學">運動學</a>嘅幾個組成部分之一，運動學係研究<a href="/wiki/%E9%81%8B%E5%8B%95" title="運動">運動</a>嘅學科。加速度係<a href="/w/index.php?title=%E6%AD%90%E5%B9%BE%E9%87%8C%E5%BE%97%E5%90%91%E9%87%8F&action=edit&redlink=1" class="new" title="歐幾里得向量 (無呢版)">向量</a>量（即係佢哋有<a href="/w/index.php?title=%E5%A4%A7%E5%B0%8F%EF%BC%88%E6%95%B8%E5%AD%B8%EF%BC%89&action=edit&redlink=1" class="new" title="大小（數學） (無呢版)">大小</a>同<a href="/w/index.php?title=%E6%96%B9%E5%90%91%EF%BC%88%E5%B9%BE%E4%BD%95%EF%BC%89&action=edit&redlink=1" class="new" title="方向（幾何） (無呢版)">方向</a>）。<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>一個物體嘅加速度方向由作用喺嗰個物體上嘅「淨」<a href="/wiki/%E5%8A%9B" title="力">力</a>嘅方向決定。根據<a href="/wiki/%E7%89%9B%E9%A0%93%E7%AC%AC%E4%BA%8C%E5%AE%9A%E5%BE%8B" title="牛頓第二定律">牛頓第二定律</a>，<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>一個物體嘅加速度大小係由兩個原因共同影響： </p> <ul><li>所有作用喺嗰個物體上嘅外部<a href="/wiki/%E5%8A%9B" title="力">力</a>嘅淨平衡 — 大小同呢個淨合力<a href="/w/index.php?title=%E6%AD%A3%E6%AF%94%E4%BE%8B&action=edit&redlink=1" class="new" title="正比例 (無呢版)">正比例</a>；</li> <li>嗰個物體嘅<a href="/wiki/%E8%B3%AA%E9%87%8F" title="質量">質量</a>，取決於物體由咩材料構成 — 大小同物體嘅質量<a href="/w/index.php?title=%E5%8F%8D%E6%AF%94%E4%BE%8B&action=edit&redlink=1" class="new" title="反比例 (無呢版)">反比例</a>。</li></ul> <p>加速度嘅<a href="/wiki/%E5%9C%8B%E9%9A%9B%E5%96%AE%E4%BD%8D%E5%88%B6" title="國際單位制">SI單位</a>係<a href="/w/index.php?title=%E7%B1%B3%E6%AF%8F%E5%B9%B3%E6%96%B9%E7%A7%92&action=edit&redlink=1" class="new" title="米每平方秒 (無呢版)">米每平方秒</a>（<span class="nowrap">m⋅s<sup>−2</sup></span>，<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {\tfrac {m}{s^{2}}} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mi mathvariant="normal">m</mi> <msup> <mi mathvariant="normal">s</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {\tfrac {m}{s^{2}}} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/98dfac31f9b284074d7828a73a97246a48a9f41d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.505ex; width:2.316ex; height:3.509ex;" alt="{\displaystyle \mathrm {\tfrac {m}{s^{2}}} }"></span>）。 </p><p>舉例嚟講，當一架<a href="/wiki/%E8%BB%8A%E8%BC%9B" class="mw-redirect" title="車輛">車輛</a>由靜止狀態（喺<a href="/wiki/%E6%85%A3%E6%80%A7%E5%8F%83%E8%80%83%E7%B3%BB" title="慣性參考系">慣性參考系</a>中速度為零）開始，沿直線以越嚟越快嘅速度行駛，佢就係喺行駛方向加速。如果車輛轉彎，就會向新方向產生加速度，改變佢嘅運動向量。車輛喺當前運動方向上嘅加速度叫做線性加速度（或者喺<a href="/wiki/%E5%9C%93%E5%91%A8%E9%81%8B%E5%8B%95" title="圓周運動">圓周運動</a>中叫做切向加速度），車上嘅乘客會感受到一股將佢哋推向座位背嘅力。當改變方向時，產生嘅加速度叫做徑向加速度（或者喺圓周運動中叫做向心加速度），乘客會感受到一種<a href="/wiki/%E9%9B%A2%E5%BF%83%E5%8A%9B" title="離心力">離心力</a>。如果車輛嘅速度減慢，呢個就係一個方向同速度向量相反嘅加速度（數學上係一個<a href="/wiki/%E8%B2%A0%E6%95%B8" title="負數">負數</a>，如果運動係單向嘅而且速度係正數），有時叫做「<b>減速</b>」<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>或者「<b>延遲</b>」，乘客會感受到減速嘅反應力，表現為一股將佢哋向前推嘅<a href="/wiki/%E6%85%A3%E6%80%A7" title="慣性">慣性</a>力。喺<a href="/wiki/%E5%A4%AA%E7%A9%BA%E8%88%B9" title="太空船">太空船</a>入面，呢啲負加速度通常係通過燃燒<a href="/w/index.php?title=%E9%80%86%E6%8E%A8%E7%81%AB%E7%AE%AD&action=edit&redlink=1" class="new" title="逆推火箭 (無呢版)">逆推火箭</a>嚟實現嘅。<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>加速同減速嘅處理方式係一樣嘅，因為佢哋都係速度嘅變化。乘客會感受到呢啲加速度（切向、徑向、減速），直到佢哋相對於速度變化嘅加速度嘅相對（差分）速度喺<a href="/wiki/%E5%8F%83%E8%80%83%E7%B3%BB" title="參考系">參考系</a>中變為零為止。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="定義同特性"><span id=".E5.AE.9A.E7.BE.A9.E5.90.8C.E7.89.B9.E6.80.A7"></span>定義同特性</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=1" title="編輯小節: 定義同特性"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Kinematics.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Kinematics.svg/300px-Kinematics.svg.png" decoding="async" width="300" height="181" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Kinematics.svg/450px-Kinematics.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Kinematics.svg/600px-Kinematics.svg.png 2x" data-file-width="524" data-file-height="317" /></a><figcaption>經典粒子嘅運動學量：質量 <span class="texhtml mvar" style="font-style:italic;">m</span>、位置 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>r</b></span></span>、速度 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>v</b></span></span>、加速度 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>a</b></span></span>.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="平均加速度"><span id=".E5.B9.B3.E5.9D.87.E5.8A.A0.E9.80.9F.E5.BA.A6"></span>平均加速度</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=2" title="編輯小節: 平均加速度"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Acceleration_as_derivative_of_velocity_along_trajectory.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Acceleration_as_derivative_of_velocity_along_trajectory.svg/220px-Acceleration_as_derivative_of_velocity_along_trajectory.svg.png" decoding="async" width="220" height="170" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Acceleration_as_derivative_of_velocity_along_trajectory.svg/330px-Acceleration_as_derivative_of_velocity_along_trajectory.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Acceleration_as_derivative_of_velocity_along_trajectory.svg/440px-Acceleration_as_derivative_of_velocity_along_trajectory.svg.png 2x" data-file-width="705" data-file-height="545" /></a><figcaption>加速度係速度嘅變化率。喺軌跡上嘅任何一點，加速度嘅大小由該點速度喺大小同方向上嘅變化率決定。時間 <span class="texhtml mvar" style="font-style:italic;">t</span> 嘅真實加速度係喺 <a href="/w/index.php?title=%E6%99%82%E9%96%93%E9%96%93%E9%9A%94&action=edit&redlink=1" class="new" title="時間間隔 (無呢版)">時間間隔</a> <span lang="en" style="font-family: serif;"><span class="texhtml">Δ<i>t</i> → 0</span></span> 嘅極限下 <span lang="en" style="font-family: serif;"><span class="texhtml">Δ<b>v</b>/Δ<i>t</i></span></span> 嘅值。</figcaption></figure> <p>一個物體喺一段時間內嘅平均加速度係佢嘅<a href="/wiki/%E9%80%9F%E5%BA%A6" title="速度">速度</a>變化量 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta \mathbf {v} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta \mathbf {v} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0ae2621f980eefffc0a3f3e806bfce57a5be867a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:3.347ex; height:2.176ex;" alt="{\displaystyle \Delta \mathbf {v} }"></span> 除以呢段時間嘅長度 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8c28867ecd34e2caed12cf38feadf6a81a7ee542" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.775ex; height:2.176ex;" alt="{\displaystyle \Delta t}"></span>。用數學表示就係： <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\bar {\mathbf {a} }}={\frac {\Delta \mathbf {v} }{\Delta t}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mo stretchy="false">¯</mo> </mover> </mrow> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi mathvariant="normal">Δ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\bar {\mathbf {a} }}={\frac {\Delta \mathbf {v} }{\Delta t}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f2636ec42a89ee8ddbbabf2d5f7bd5c6f77eb71a" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:8.581ex; height:5.509ex;" alt="{\displaystyle {\bar {\mathbf {a} }}={\frac {\Delta \mathbf {v} }{\Delta t}}}"></span> </p> <div class="mw-heading mw-heading3"><h3 id="瞬時加速度"><span id=".E7.9E.AC.E6.99.82.E5.8A.A0.E9.80.9F.E5.BA.A6"></span>瞬時加速度</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=3" title="編輯小節: 瞬時加速度"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:1-D_kinematics.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/30/1-D_kinematics.svg/220px-1-D_kinematics.svg.png" decoding="async" width="220" height="232" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/30/1-D_kinematics.svg/330px-1-D_kinematics.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/30/1-D_kinematics.svg/440px-1-D_kinematics.svg.png 2x" data-file-width="445" data-file-height="470" /></a><figcaption><b>由下至上</b>：<div><ul><li>加速度函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>a</i>(<i>t</i>)</span></span>;</li><li>加速度嘅積分係速度函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>v</i>(<i>t</i>)</span></span>;</li><li>而速度嘅積分係距離函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>s</i>(<i>t</i>)</span></span>.</li></ul></div></figcaption></figure> <p>瞬時加速度係一個<a href="/wiki/%E7%84%A1%E7%AA%AE%E5%B0%8F" class="mw-redirect" title="無窮小">無窮小</a>時間間隔內平均加速度嘅<a href="/wiki/%E5%87%BD%E6%95%B8%E6%A5%B5%E9%99%90" class="mw-redirect" title="函數極限">函數極限</a>。用<a href="/wiki/%E5%BE%AE%E7%A9%8D%E5%88%86" title="微積分">微積分</a>嚟講，瞬時加速度係速度向量對時間嘅<a href="/wiki/%E5%B0%8E%E6%95%B8" title="導數">導數</a>： <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {a} =\lim _{{\Delta t}\to 0}{\frac {\Delta \mathbf {v} }{\Delta t}}={\frac {d\mathbf {v} }{dt}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mo>=</mo> <munder> <mo movablelimits="true" form="prefix">lim</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mrow> <mo stretchy="false">→</mo> <mn>0</mn> </mrow> </munder> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi mathvariant="normal">Δ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi mathvariant="normal">Δ</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {a} =\lim _{{\Delta t}\to 0}{\frac {\Delta \mathbf {v} }{\Delta t}}={\frac {d\mathbf {v} }{dt}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/57df7a9fae2d9253e99e9433874ab522ce31a428" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:19.957ex; height:5.676ex;" alt="{\displaystyle \mathbf {a} =\lim _{{\Delta t}\to 0}{\frac {\Delta \mathbf {v} }{\Delta t}}={\frac {d\mathbf {v} }{dt}}}"></span> 因為加速度定義為速度 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>v</b></span></span> 對時間 <span class="texhtml mvar" style="font-style:italic;">t</span> 嘅導數，而速度又定義為位置 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>x</b></span></span> 對時間嘅導數，所以加速度可以理解為 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>x</b></span></span> 對 <span class="texhtml mvar" style="font-style:italic;">t</span> 嘅<a href="/w/index.php?title=%E4%BA%8C%E9%9A%8E%E5%B0%8E%E6%95%B8&action=edit&redlink=1" class="new" title="二階導數 (無呢版)">二階導數</a>： <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msup> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">x</mi> </mrow> </mrow> <mrow> <mi>d</mi> <msup> <mi>t</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1760b1620e8d07692ecfb879abb37fad5a34f238" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:15.479ex; height:6.009ex;" alt="{\displaystyle \mathbf {a} ={\frac {d\mathbf {v} }{dt}}={\frac {d^{2}\mathbf {x} }{dt^{2}}}}"></span> </p><p>（喺呢度同其他地方，如果係<a href="/w/index.php?title=%E7%9B%B4%E7%B7%9A%E9%81%8B%E5%8B%95&action=edit&redlink=1" class="new" title="直線運動 (無呢版)">直線運動</a>，方程式入面嘅<a href="/w/index.php?title=%E6%AD%90%E5%B9%BE%E9%87%8C%E5%BE%97%E5%90%91%E9%87%8F&action=edit&redlink=1" class="new" title="歐幾里得向量 (無呢版)">向量</a>可以用<a href="/w/index.php?title=%E7%B4%94%E9%87%8F_(%E7%89%A9%E7%90%86)&action=edit&redlink=1" class="new" title="純量 (物理) (無呢版)">純量</a>代替。） </p><p>根據<a href="/wiki/%E5%BE%AE%E7%A9%8D%E5%88%86%E5%9F%BA%E6%9C%AC%E5%AE%9A%E7%90%86" title="微積分基本定理">微積分基本定理</a>，可以睇到加速度函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>a</i>(<i>t</i>)</span></span> 嘅<a href="/wiki/%E7%A9%8D%E5%88%86" title="積分">積分</a>就係速度函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>v</i>(<i>t</i>)</span></span>；即係話，加速度對時間（<span class="texhtml mvar" style="font-style:italic;">a</span> 對 <span class="texhtml mvar" style="font-style:italic;">t</span>）圖嘅曲線下面嘅面積就相當於速度嘅變化。 <span class="mwe-math-element" data-qid="Q11465"><a href="/w/index.php?title=Special:MathWikibase&qid=Q11465" style="color:inherit;"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {\Delta v} =\int \mathbf {a} \,dt}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">Δ</mi> <mi mathvariant="bold">v</mi> </mrow> <mo>=</mo> <mo>∫</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mspace width="thinmathspace" /> <mi>d</mi> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {\Delta v} =\int \mathbf {a} \,dt}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/dc1f418fc7d7407d462c80dd8d231da2aeb59086" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:13.058ex; height:5.676ex;" alt="{\displaystyle \mathbf {\Delta v} =\int \mathbf {a} \,dt}"></a></span> </p><p>同樣，<a href="/wiki/%E5%8A%A0%E5%8A%A0%E9%80%9F%E5%BA%A6" class="mw-redirect" title="加加速度">加加速度</a>函數 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>j</i>(<i>t</i>)</span></span>（即加速度函數嘅導數）嘅積分可以用嚟計算某個時間嘅加速度變化： <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {\Delta a} =\int \mathbf {j} \,dt}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">Δ</mi> <mi mathvariant="bold">a</mi> </mrow> <mo>=</mo> <mo>∫</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">j</mi> </mrow> <mspace width="thinmathspace" /> <mi>d</mi> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {\Delta a} =\int \mathbf {j} \,dt}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fa39085e49dad8c5d55ead97ffe110af966ac628" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:12.464ex; height:5.676ex;" alt="{\displaystyle \mathbf {\Delta a} =\int \mathbf {j} \,dt}"></span> </p> <div class="mw-heading mw-heading3"><h3 id="單位"><span id=".E5.96.AE.E4.BD.8D"></span>單位</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=4" title="編輯小節: 單位"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>加速度嘅<a href="/w/index.php?title=%E9%87%8F%E7%B6%B1%E5%88%86%E6%9E%90&action=edit&redlink=1" class="new" title="量綱分析 (無呢版)">量綱</a>係速度（L/T）除以時間，即 <a href="/wiki/%E9%95%B7%E5%BA%A6" title="長度">L</a> <a href="/wiki/%E6%99%82%E9%96%93" title="時間">T</a><sup>−2</sup>。加速度嘅<a href="/wiki/%E5%9C%8B%E9%9A%9B%E5%96%AE%E4%BD%8D%E5%88%B6" title="國際單位制">SI單位</a>係<a href="/w/index.php?title=%E7%B1%B3%E6%AF%8F%E5%B9%B3%E6%96%B9%E7%A7%92&action=edit&redlink=1" class="new" title="米每平方秒 (無呢版)">米每平方秒</a>（m s<sup>−2</sup>）；或者叫做「米每秒每秒」，因為每秒鐘速度以米每秒為單位嘅變化量等於加速度值。 </p> <div class="mw-heading mw-heading3"><h3 id="其他形式"><span id=".E5.85.B6.E4.BB.96.E5.BD.A2.E5.BC.8F"></span>其他形式</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=5" title="編輯小節: 其他形式"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>一個做圓周運動嘅物體——好似圍繞地球運行嘅衞星——因為運動方向嘅改變而加速，雖然佢嘅速率可能係恆定嘅。喺呢種情況下，我哋話佢經歷緊「向心」（指向圓心）加速。 </p><p><a href="/w/index.php?title=%E5%9B%BA%E6%9C%89%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&redlink=1" class="new" title="固有加速度 (無呢版)">固有加速度</a>，即一個物體相對於自由落體狀態嘅加速度，係用一種叫做<a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6%E8%A8%88&action=edit&redlink=1" class="new" title="加速度計 (無呢版)">加速度計</a>嘅儀器嚟測量嘅。 </p><p>喺<a href="/wiki/%E7%B6%93%E5%85%B8%E5%8A%9B%E5%AD%B8" class="mw-redirect" title="經典力學">經典力學</a>中，對於質量恆定嘅物體，物體質心嘅（向量）加速度同作用喺佢身上嘅淨<a href="/wiki/%E5%8A%9B" title="力">力</a>向量（即所有力嘅和）成正比（<a href="/wiki/%E7%89%9B%E9%A0%93%E9%81%8B%E5%8B%95%E5%AE%9A%E5%BE%8B#牛頓第二定律" title="牛頓運動定律">牛頓第二定律</a>）： <span class="mwe-math-element" data-qid="Q2397319"><a href="/w/index.php?title=Special:MathWikibase&qid=Q2397319" style="color:inherit;"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {F} =m\mathbf {a} \quad \implies \quad \mathbf {a} ={\frac {\mathbf {F} }{m}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">F</mi> </mrow> <mo>=</mo> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mspace width="1em" /> <mspace width="thickmathspace" /> <mo stretchy="false">⟹</mo> <mspace width="thickmathspace" /> <mspace width="1em" /> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">F</mi> </mrow> <mi>m</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {F} =m\mathbf {a} \quad \implies \quad \mathbf {a} ={\frac {\mathbf {F} }{m}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c5b941accf6adc507f8e4d4e2bac9ec143dca7ac" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:26.427ex; height:5.176ex;" alt="{\displaystyle \mathbf {F} =m\mathbf {a} \quad \implies \quad \mathbf {a} ={\frac {\mathbf {F} }{m}}}"></a></span> 其中 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>F</b></span></span> 係作用喺物體上嘅淨力，<span class="texhtml mvar" style="font-style:italic;">m</span> 係物體嘅<a href="/wiki/%E8%B3%AA%E9%87%8F" title="質量">質量</a>，而 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>a</b></span></span> 係質心嘅加速度。當速度接近<a href="/wiki/%E5%85%89%E9%80%9F" title="光速">光速</a>嘅時候，<a href="/wiki/%E7%8B%B9%E7%BE%A9%E7%9B%B8%E5%B0%8D%E8%AB%96" title="狹義相對論">相對論效應</a>會變得越嚟越大。 </p> <div class="mw-heading mw-heading2"><h2 id="切向加速度同向心加速度"><span id=".E5.88.87.E5.90.91.E5.8A.A0.E9.80.9F.E5.BA.A6.E5.90.8C.E5.90.91.E5.BF.83.E5.8A.A0.E9.80.9F.E5.BA.A6"></span>切向加速度同向心加速度</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=6" title="編輯小節: 切向加速度同向心加速度"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <div role="note" class="hatnote">睇埋：<a href="/wiki/%E5%90%91%E5%BF%83%E5%8A%9B#局部坐標系" title="向心力">向心力 § 局部坐標系</a>同<a href="/w/index.php?title=%E5%88%87%E5%90%91%E9%80%9F%E5%BA%A6&action=edit&redlink=1" class="new" title="切向速度 (無呢版)">切向速度</a></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Oscillating_pendulum.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Oscillating_pendulum.gif/220px-Oscillating_pendulum.gif" decoding="async" width="220" height="206" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Oscillating_pendulum.gif/330px-Oscillating_pendulum.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/2/24/Oscillating_pendulum.gif 2x" data-file-width="341" data-file-height="320" /></a><figcaption>一個振盪嘅鐘擺，標示咗速度同加速度。佢同時受到切向加速度同向心加速度。</figcaption></figure> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Acceleration_components.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Acceleration_components.svg/220px-Acceleration_components.svg.png" decoding="async" width="220" height="145" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Acceleration_components.svg/330px-Acceleration_components.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Acceleration_components.svg/440px-Acceleration_components.svg.png 2x" data-file-width="512" data-file-height="338" /></a><figcaption>曲線運動嘅加速度分量。切向分量 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>a</b><sub>t</sub></span></span> 係由於運動速率嘅變化而產生嘅，沿住曲線指向速度向量嘅方向（或者相反方向）。法向分量（對於圓周運動亦稱為向心分量）<span lang="en" style="font-family: serif;"><span class="texhtml"><b>a</b><sub>c</sub></span></span> 係由於速度向量方向嘅改變而產生嘅，垂直於軌跡，指向曲線嘅曲率中心。</figcaption></figure> <p>一個粒子喺曲線路徑上運動嘅速度可以寫成時間嘅<a href="/wiki/%E5%87%BD%E6%95%B8" title="函數">函數</a>： <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {v} (t)=v(t){\frac {\mathbf {v} (t)}{v(t)}}=v(t)\mathbf {u} _{\mathrm {t} }(t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mi>v</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mi>v</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mrow> </mfrac> </mrow> <mo>=</mo> <mi>v</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {v} (t)=v(t){\frac {\mathbf {v} (t)}{v(t)}}=v(t)\mathbf {u} _{\mathrm {t} }(t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e899a2df1e37ca9061148b083501c5a230544bd8" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:27.712ex; height:6.509ex;" alt="{\displaystyle \mathbf {v} (t)=v(t){\frac {\mathbf {v} (t)}{v(t)}}=v(t)\mathbf {u} _{\mathrm {t} }(t)}"></span> 其中 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>v</i>(<i>t</i>)</span></span> 等於沿路徑運動嘅速率，而 <span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {u} _{\mathrm {t} }={\frac {\mathbf {v} (t)}{v(t)}}\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mi>v</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mrow> </mfrac> </mrow> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {u} _{\mathrm {t} }={\frac {\mathbf {v} (t)}{v(t)}}\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c0b4df761b6ed0cf4249946276521d262647ec5f" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:10.739ex; height:6.509ex;" alt="{\displaystyle \mathbf {u} _{\mathrm {t} }={\frac {\mathbf {v} (t)}{v(t)}}\,}"></span> 係一個<a href="/wiki/%E5%BE%AE%E5%88%86%E5%B9%BE%E4%BD%95%E5%AD%B8#切向量" class="mw-redirect" title="微分幾何學">單位切向量</a>，指向所選時刻嘅運動方向。考慮到速率 <span lang="en" style="font-family: serif;"><span class="texhtml"><i>v</i>(<i>t</i>)</span></span> 同 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>u</b><sub><i>t</i></sub></span></span> 方向嘅變化，一個喺曲線路徑上運動嘅粒子嘅加速度可以用兩個時間函數乘積嘅<a href="/w/index.php?title=%E9%8F%88%E5%BC%8F%E6%B3%95%E5%89%87&action=edit&redlink=1" class="new" title="鏈式法則 (無呢版)">鏈式法則</a>寫成：<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\begin{alignedat}{3}\mathbf {a} &={\frac {d\mathbf {v} }{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+v(t){\frac {d\mathbf {u} _{\mathrm {t} }}{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+{\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }\ \end{alignedat}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtable columnalign="right left right left right left" rowspacing="3pt" columnspacing="0em 0em 0em 0em 0em 0em" displaystyle="true"> <mtr> <mtd> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> </mtd> <mtd> <mi></mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> </mtd> </mtr> <mtr> <mtd /> <mtd> <mi></mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mi>v</mi> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mo>+</mo> <mi>v</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> </mtd> </mtr> <mtr> <mtd /> <mtd> <mi></mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mi>v</mi> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mo>+</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi>v</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mi>r</mi> </mfrac> </mrow> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">n</mi> </mrow> </mrow> </msub> <mtext> </mtext> </mtd> </mtr> </mtable> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\begin{alignedat}{3}\mathbf {a} &={\frac {d\mathbf {v} }{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+v(t){\frac {d\mathbf {u} _{\mathrm {t} }}{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+{\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }\ \end{alignedat}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6251177761a0e42db3f242bd49cb01c50c0f0b57" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -7.838ex; width:21.712ex; height:16.843ex;" alt="{\displaystyle {\begin{alignedat}{3}\mathbf {a} &={\frac {d\mathbf {v} }{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+v(t){\frac {d\mathbf {u} _{\mathrm {t} }}{dt}}\\&={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }+{\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }\ \end{alignedat}}}"></span> </p><p>其中 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>u</b><sub>n</sub></span></span> 係粒子軌跡嘅單位（向內）<a href="/wiki/%E5%BE%AE%E5%88%86%E5%B9%BE%E4%BD%95%E5%AD%B8#法向量或曲率向量" class="mw-redirect" title="微分幾何學">法向量</a>（亦稱為「主法向量」），而 <span lang="en" style="font-family: serif;"><span class="texhtml"><b>r</b></span></span> 係佢喺時間 <span class="texhtml mvar" style="font-style:italic;">t</span> 嘅瞬時<a href="/wiki/%E6%9B%B2%E7%8E%87#平面曲線嘅曲率" title="曲率">曲率半徑</a>，基於<a href="/w/index.php?title=%E5%AF%86%E5%88%87%E5%9C%93&action=edit&redlink=1" class="new" title="密切圓 (無呢版)">密切圓</a>。呢兩個分量 </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {a} _{\mathrm {t} }={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }\quad {\text{同}}\quad \mathbf {a} _{\mathrm {c} }={\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>d</mi> <mi>v</mi> </mrow> <mrow> <mi>d</mi> <mi>t</mi> </mrow> </mfrac> </mrow> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> <mspace width="1em" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>同</mtext> </mrow> <mspace width="1em" /> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">a</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">c</mi> </mrow> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi>v</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mi>r</mi> </mfrac> </mrow> <msub> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">u</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">n</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {a} _{\mathrm {t} }={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }\quad {\text{同}}\quad \mathbf {a} _{\mathrm {c} }={\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0c86a42de2e1d76c9687f8dc70dac9860efece38" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:27.878ex; height:5.843ex;" alt="{\displaystyle \mathbf {a} _{\mathrm {t} }={\frac {dv}{dt}}\mathbf {u} _{\mathrm {t} }\quad {\text{同}}\quad \mathbf {a} _{\mathrm {c} }={\frac {v^{2}}{r}}\mathbf {u} _{\mathrm {n} }}"></span></dd></dl> <p>分別叫做<a href="/w/index.php?title=%E5%88%87%E5%90%91%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&redlink=1" class="new" title="切向加速度 (無呢版)">切向加速度</a>同法向或徑向加速度（喺圓周運動中叫做向心加速度，請參見<a href="/wiki/%E5%9C%93%E5%91%A8%E9%81%8B%E5%8B%95" title="圓周運動">圓周運動</a>同<a href="/wiki/%E5%90%91%E5%BF%83%E5%8A%9B" title="向心力">向心力</a>）。 </p><p>三維空間曲線嘅幾何分析，解釋咗切向量、（主）法向量同副法向量，由<a href="/w/index.php?title=%E5%BC%97%E8%90%8A%E5%85%A7-%E5%A1%9E%E9%9B%B7%E5%85%AC%E5%BC%8F&action=edit&redlink=1" class="new" title="弗萊內-塞雷公式 (無呢版)">弗萊內-塞雷公式</a>描述。<sup id="cite_ref-Andrews_8-0" class="reference"><a href="#cite_note-Andrews-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Chand_9-0" class="reference"><a href="#cite_note-Chand-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="睇埋"><span id=".E7.9D.87.E5.9F.8B"></span>睇埋</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=7" title="編輯小節: 睇埋"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>加速度嘅加速度：<a href="/wiki/%E6%80%A5%E8%AE%8A%E7%8E%87" title="急變率">急變率</a></li> <li><a href="/wiki/%E5%BE%AE%E5%88%86" title="微分">微分</a></li> <li><a href="/wiki/%E6%96%9C%E7%8E%87" title="斜率">斜率</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="引咗"><span id=".E5.BC.95.E5.92.97"></span>引咗</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&action=edit&section=8" title="編輯小節: 引咗"><span>編輯</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r2020813">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r2190673">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .references-small,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .pin1ming4,.mw-parser-output .syu1ming4{font-style:normal}.mw-parser-output .pin1ming4>.zit3,.mw-parser-output .syu1ming4>.zit3,.mw-parser-output .zyun1ming4>.zit3,.mw-parser-output .zoek6zung6>.zit3{display:inline-block}.mw-parser-output .pin1ming4 .zit3>.zit3,.mw-parser-output .syu1ming4 .zit3>.zit3,.mw-parser-output .zyun1ming4 .zit3>.zit3,.mw-parser-output .zoek6zung6 .zit3>.zit3{display:inline-flex}.mw-parser-output .pin1ming4 .hoi1,.mw-parser-output .pin1ming4 .fan1gaak3,.mw-parser-output .pin1ming4 .saan1,.mw-parser-output .syu1ming4 .hoi1,.mw-parser-output .syu1ming4 .fan1gaak3,.mw-parser-output .syu1ming4 .saan1{display:inline-block;width:0;height:0;font-size:0.1px;color:transparent}.mw-parser-output .zyun1ming4 .fan1gaak3{font-size:0.125px}.mw-parser-output .pin1ming4+.pin1ming4,.mw-parser-output .pin1ming4+.syu1ming4,.mw-parser-output .syu1ming4+.pin1ming4,.mw-parser-output .syu1ming4+.syu1ming4,.mw-parser-output .zyun1ming4-b+.zyun1ming4-b,.mw-parser-output .zyun1ming4+.zyun1ming4{margin-left:0.0833em}.mw-parser-output .pin1ming4 .hai2tau4ge3.zit3 .hai2tau4ge3.zi6:after,.mw-parser-output .syu1ming4 .hai2tau4ge3.zit3 .hai2tau4ge3.zi6:after{clip-path:inset(0 0 0 0.05em)}.mw-parser-output .pin1ming4 .hai2zeoi3tau4ge3.hai2zeoi3mei1ge3.zit3 .hai2zeoi3tau4ge3.hai2zeoi3mei1ge3.zi6:after,.mw-parser-output .syu1ming4 .hai2zeoi3tau4ge3.hai2zeoi3mei1ge3.zit3 .hai2zeoi3tau4ge3.hai2zeoi3mei1ge3.zi6:after{clip-path:inset(0 0.14em 0 0.05em)}.mw-parser-output .pin1ming4 .hai2zeoi3mei1ge3.zit3 .hai2zeoi3mei1ge3.zi6:after,.mw-parser-output .syu1ming4 .hai2zeoi3mei1ge3.zit3 .hai2zeoi3mei1ge3.zi6:after{clip-path:inset(0 0.14em 0 0)}.mw-parser-output a[href$=".pdf"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".pdf?"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".pdf#"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".PDF"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".PDF?"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".PDF#"].external>span[aria-label]>.pin1ming4>.saan1,.mw-parser-output a[href$=".pdf"].external>span[aria-label]>.syu1ming4>.saan1,.mw-parser-output a[href$=".pdf?"].external>span[aria-label]>.syu1ming4>.saan1,.mw-parser-output a[href$=".pdf#"].external>span[aria-label]>.syu1ming4>.saan1,.mw-parser-output a[href$=".PDF"].external>span[aria-label]>.syu1ming4>.saan1,.mw-parser-output a[href$=".PDF?"].external>span[aria-label]>.syu1ming4>.saan1,.mw-parser-output a[href$=".PDF#"].external>span[aria-label]>.syu1ming4>.saan1{width:unset;font-size:unset}.mw-parser-output .zyun1ming4 .hai2tau4ge3.zit3 .hai2tau4ge3.zi6:after{overflow:hidden}.mw-parser-output .zyun1ming4 .hai2tau4ge3.hai2zeoi3mei1ge3.zit3{clip-path:inset(0 0 0 0)}.mw-parser-output .zyun1ming4 .hai2tau4ge3.hai2zeoi3mei1ge3.zit3 .hai2tau4ge3.hai2zeoi3mei1ge3.zi6:after{clip-path:inset(0.14em 0 0 0)}.mw-parser-output .zyun1ming4 .hai2zeoi3mei1ge3.zit3 .hai2zeoi3mei1ge3.zi6:after{transform:rotate(90deg)translate(-0.25em,0.5em)}.mw-parser-output .fan1gaak3+.zi6:after{clip-path:inset(0 0 0 0.1em)}.mw-parser-output .pin1ming4 .zi6:after,.mw-parser-output .syu1ming4 .zi6:after,.mw-parser-output .zyun1ming4 .zi6:after,.mw-parser-output .zoek6zung6 .zi6:after{position:absolute;align-self:baseline;margin-left:-1em}.mw-parser-output .pin1ming4 .zi6:after,.mw-parser-output .syu1ming4 .zi6:after{padding-top:1em;content:"﹋"}.mw-parser-output .zyun1ming4 .zi6:after{content:"︳";transform-origin:bottom left;transform:rotate(90deg)translate(-0.25em,0.35em)}.mw-parser-output .zoek6zung6 .zi6:after{padding-top:0.6em;content:"·";width:1em;text-align:center}.mw-parser-output .koen1zo2,.mw-parser-output .pin1ming4-b .hoi1-adj,.mw-parser-output .syu1ming4-b .hoi1-adj{margin-left:-0.4em}.mw-parser-output .koen1jau6,.mw-parser-output .pin1ming4-b .saan1-adj,.mw-parser-output .syu1ming4-b .saan1-adj{margin-right:-0.4em}.mw-parser-output .zyun1ming4-b{white-space:nowrap;border-bottom:0.05em solid currentColor}.mw-parser-output .zyun1ming4-b+link+.zyun1ming4-b,.mw-parser-output .zyun1ming4-b+.zyun1ming4-b{margin-left:0.083em}.mw-parser-output .references-small>ul{margin-left:0}.mw-parser-output .references-small>ul>li{margin-left:3em;text-indent:-3em;list-style:none}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><cite id="CITEREFBondi1980" class="citation book cs1">Bondi, Hermann (1980). <a rel="nofollow" class="external text" href="https://archive.org/details/relativitycommon0000bond/page/3"><i>Relativity and Common Sense</i></a>. Courier Dover Publications. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/relativitycommon0000bond/page/3">3</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-0-486-24021-3" title="Special:書本來源/978-0-486-24021-3"><bdi>978-0-486-24021-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Relativity+and+Common+Sense&rft.pages=3&rft.pub=Courier+Dover+Publications&rft.date=1980&rft.isbn=978-0-486-24021-3&rft.aulast=Bondi&rft.aufirst=Hermann&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Frelativitycommon0000bond%2Fpage%2F3&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFLehrman1998" class="citation book cs1">Lehrman, Robert L. (1998). <a rel="nofollow" class="external text" href="https://archive.org/details/physicseasyway00lehr_0/page/27"><i>Physics the Easy Way</i></a>. Barron's Educational Series. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/physicseasyway00lehr_0/page/27">27</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-0-7641-0236-3" title="Special:書本來源/978-0-7641-0236-3"><bdi>978-0-7641-0236-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Physics+the+Easy+Way&rft.pages=27&rft.pub=Barron%27s+Educational+Series&rft.date=1998&rft.isbn=978-0-7641-0236-3&rft.aulast=Lehrman&rft.aufirst=Robert+L.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fphysicseasyway00lehr_0%2Fpage%2F27&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFCrew2008" class="citation book cs1">Crew, Henry (2008). <i>The Principles of Mechanics</i>. BiblioBazaar, LLC. p. 43. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-0-559-36871-4" title="Special:書本來源/978-0-559-36871-4"><bdi>978-0-559-36871-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Principles+of+Mechanics&rft.pages=43&rft.pub=BiblioBazaar%2C+LLC&rft.date=2008&rft.isbn=978-0-559-36871-4&rft.aulast=Crew&rft.aufirst=Henry&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFP._SmithR._C._Smith1991" class="citation book cs1">P. Smith; R. C. Smith (1991). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Zzh_unG7OAsC"><i>Mechanics</i></a> (第2nd, illustrated, reprinted版). John Wiley & Sons. p. 39. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-0-471-92737-2" title="Special:書本來源/978-0-471-92737-2"><bdi>978-0-471-92737-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Mechanics&rft.pages=39&rft.edition=2nd%2C+illustrated%2C+reprinted&rft.pub=John+Wiley+%26+Sons&rft.date=1991&rft.isbn=978-0-471-92737-2&rft.au=P.+Smith&rft.au=R.+C.+Smith&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DZzh_unG7OAsC&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span> <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Zzh_unG7OAsC&pg=PA39">Extract of page 39</a></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFJohn_D._CutnellKenneth_W._Johnson2014" class="citation book cs1">John D. Cutnell; Kenneth W. Johnson (2014). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=PJWDBgAAQBAJ"><i>Physics, Volume One: Chapters 1-17, Volume 1</i></a> (第1st0, illustrated版). John Wiley & Sons. p. 36. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-1-118-83688-0" title="Special:書本來源/978-1-118-83688-0"><bdi>978-1-118-83688-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Physics%2C+Volume+One%3A+Chapters+1-17%2C+Volume+1&rft.pages=36&rft.edition=1st0%2C+illustrated&rft.pub=John+Wiley+%26+Sons&rft.date=2014&rft.isbn=978-1-118-83688-0&rft.au=John+D.+Cutnell&rft.au=Kenneth+W.+Johnson&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DPJWDBgAAQBAJ&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span> <a rel="nofollow" class="external text" href="https://books.google.com/books?id=PJWDBgAAQBAJ&pg=PA36">Extract of page 36</a></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFRaymond_A._SerwayChris_VuilleJerry_S._Faughn2008" class="citation book cs1">Raymond A. Serway; Chris Vuille; Jerry S. Faughn (2008). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=CX0u0mIOZ44C&pg=PA32"><i>College Physics, Volume 10</i></a>. Cengage. p. 32. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/9780495386933" title="Special:書本來源/9780495386933"><bdi>9780495386933</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=College+Physics%2C+Volume+10&rft.pages=32&rft.pub=Cengage&rft.date=2008&rft.isbn=9780495386933&rft.au=Raymond+A.+Serway&rft.au=Chris+Vuille&rft.au=Jerry+S.+Faughn&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DCX0u0mIOZ44C%26pg%3DPA32&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFWeisstein" class="citation web cs1">Weisstein, Eric W. <a rel="nofollow" class="external text" href="http://mathworld.wolfram.com/ChainRule.html">"Chain Rule"</a>. <i>Wolfram MathWorld</i>. Wolfram Research<span class="reference-accessdate">. 喺<span class="nowrap">2 August</span> 2016搵到</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Wolfram+MathWorld&rft.atitle=Chain+Rule&rft.aulast=Weisstein&rft.aufirst=Eric+W.&rft_id=http%3A%2F%2Fmathworld.wolfram.com%2FChainRule.html&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-Andrews-8"><span class="mw-cite-backlink"><a href="#cite_ref-Andrews_8-0">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFLarry_C._AndrewsRonald_L._Phillips2003" class="citation book cs1">Larry C. Andrews; Ronald L. Phillips (2003). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=MwrDfvrQyWYC&q=particle+%22planar+motion%22&pg=PA164"><i>Mathematical Techniques for Engineers and Scientists</i></a>. SPIE Press. p. 164. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-0-8194-4506-3" title="Special:書本來源/978-0-8194-4506-3"><bdi>978-0-8194-4506-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Mathematical+Techniques+for+Engineers+and+Scientists&rft.pages=164&rft.pub=SPIE+Press&rft.date=2003&rft.isbn=978-0-8194-4506-3&rft.au=Larry+C.+Andrews&rft.au=Ronald+L.+Phillips&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DMwrDfvrQyWYC%26q%3Dparticle%2B%2522planar%2Bmotion%2522%26pg%3DPA164&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> <li id="cite_note-Chand-9"><span class="mw-cite-backlink"><a href="#cite_ref-Chand_9-0">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2190673"><cite id="CITEREFCh_V_Ramana_MurthyNC_Srinivas2001" class="citation book cs1">Ch V Ramana Murthy; NC Srinivas (2001). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Q0Pvv4vWOlQC&pg=PA337"><i>Applied Mathematics</i></a>. New Delhi: S. Chand & Co. p. 337. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:%E6%9B%B8%E6%9C%AC%E4%BE%86%E6%BA%90/978-81-219-2082-7" title="Special:書本來源/978-81-219-2082-7"><bdi>978-81-219-2082-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Applied+Mathematics&rft.place=New+Delhi&rft.pages=337&rft.pub=S.+Chand+%26+Co.&rft.date=2001&rft.isbn=978-81-219-2082-7&rft.au=Ch+V+Ramana+Murthy&rft.au=NC+Srinivas&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DQ0Pvv4vWOlQC%26pg%3DPA337&rfr_id=info%3Asid%2Fzh-yue.wikipedia.org%3A%E5%8A%A0%E9%80%9F%E5%BA%A6" class="Z3988"></span></span> </li> </ol></div> <div role="navigation" class="navbox" aria-labelledby="古典力學同分析力學" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><a href="/wiki/Template:%E5%8F%A4%E5%85%B8%E5%8A%9B%E5%AD%B8" title="Template:古典力學"><abbr title="去睇呢個模" style=";;background:none transparent;border:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none; padding:0;">睇</abbr></a></li><li class="nv-talk"><a href="/w/index.php?title=Template_talk:%E5%8F%A4%E5%85%B8%E5%8A%9B%E5%AD%B8&action=edit&redlink=1" class="new" title="Template talk:古典力學 (無呢版)"><abbr title="傾呢個模" style=";;background:none transparent;border:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none; padding:0;">傾</abbr></a></li><li class="nv-edit"><a class="external text" href="https://zh-yue.wikipedia.org/w/index.php?title=Template:%E5%8F%A4%E5%85%B8%E5%8A%9B%E5%AD%B8&action=edit"><abbr title="編輯呢個模" style=";;background:none transparent;border:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none; padding:0;">改</abbr></a></li></ul></div><div id="古典力學同分析力學" style="font-size:114%;margin:0 4em"><a href="/wiki/%E5%8F%A4%E5%85%B8%E5%8A%9B%E5%AD%B8" title="古典力學">古典力學</a>同<a href="/wiki/%E5%88%86%E6%9E%90%E5%8A%9B%E5%AD%B8" title="分析力學">分析力學</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="3"><div id="研究物體點郁動嘅古典物理學理論">研究<a href="/wiki/%E7%89%A9%E9%AB%94" title="物體">物體</a>點<a href="/wiki/%E9%83%81%E5%8B%95" class="mw-redirect" title="郁動">郁動</a>嘅<a href="/wiki/%E5%8F%A4%E5%85%B8%E7%89%A9%E7%90%86%E5%AD%B8" title="古典物理學">古典物理學</a>理論</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">重<br />要<br />概<br />念</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="基礎概念" scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">基礎概念</div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E9%BB%9E%E7%B2%92%E5%AD%90" title="點粒子">點粒子</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%B3%AA%E9%87%8F" title="質量">質量</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E4%BD%8D%E7%BD%AE" title="位置">位置</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%89%9B%E9%AB%94" title="剛體">剛體</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%85%A3%E6%80%A7" title="慣性">慣性</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%A9%BA%E9%96%93" title="空間">空間</a>（<a href="/wiki/%E7%B5%95%E5%B0%8D%E6%99%82%E7%A9%BA" title="絕對時空">絕對時空</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8F%83%E8%80%83%E7%B3%BB" title="參考系">參考系</a>同<a href="/wiki/%E6%85%A3%E6%80%A7%E5%8F%83%E8%80%83%E7%B3%BB" title="慣性參考系">慣性參考系</a>）</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">　　<a href="/wiki/%E4%BD%8D%E7%A7%BB" title="位移">位移</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E9%83%81" title="郁">郁</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%9C%93%E5%91%A8%E9%81%8B%E5%8B%95" title="圓周運動">圓周運動</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%80%9F%E5%BA%A6" title="速度">速度</a>（<a href="/wiki/%E7%9B%B8%E5%B0%8D%E9%80%9F%E5%BA%A6" title="相對速度">相對速度</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a class="mw-selflink selflink">加速度</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%81%8B%E5%8B%95%E6%96%B9%E7%A8%8B" title="運動方程">運動方程</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%8C%AF%E5%8B%95" title="振動">振動</a>（<a href="/wiki/%E7%B9%A9%E5%98%85%E6%8C%AF%E5%8B%95" title="繩嘅振動">繩嘅振動</a>）</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/%E5%8A%9B" title="力">力</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E8%87%AA%E7%94%B1%E9%AB%94%E5%9C%96" title="自由體圖">自由體圖</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8A%9B%E5%AD%B8%E5%B9%B3%E8%A1%A1" title="力學平衡">平衡</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8B%95%E9%87%8F" title="動量">動量</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%BC%95%E5%8A%9B" class="mw-redirect" title="引力">引力</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%87%8D%E9%87%8F" title="重量">重量</a>同 <a href="/wiki/G_%E5%8A%9B" title="G 力">G 力</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8A%9B%E8%87%82" title="力臂">力臂</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8A%9B%E5%81%B6" title="力偶">力偶</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%91%A9%E6%93%A6%E5%8A%9B" title="摩擦力">摩擦力</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%B0%A1%E8%AB%A7%E9%81%8B%E5%8B%95" title="簡諧運動">簡諧</a>同<a href="/wiki/%E8%A4%87%E8%AB%A7%E9%81%8B%E5%8B%95" title="複諧運動">複諧</a>運動（<a href="/wiki/%E6%93%BA" title="擺">擺</a>）</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/%E5%8A%9F" title="功">功</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E6%A9%9F%E6%A2%B0%E8%83%BD" title="機械能">機械能</a>（<a href="/wiki/%E5%8B%95%E8%83%BD" title="動能">動能</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E4%BD%8D%E8%83%BD" title="位能">位能</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8A%9F%E7%8E%87" title="功率">功率</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/%E8%BD%89%E5%8B%95" title="轉動">轉動</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E5%90%91%E5%BF%83%E5%8A%9B" title="向心力">向心力</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%A7%92%E7%A7%BB" title="角移">角移</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%A7%92%E9%80%9F%E5%BA%A6" title="角速度">角速度</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8A%9B%E7%9F%A9" title="力矩">力矩</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%A7%92%E5%8A%A0%E9%80%9F%E5%BA%A6" title="角加速度">角加速度</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%A7%92%E9%A0%BB%E7%8E%87" title="角頻率">角頻率</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%A7%92%E5%8B%95%E9%87%8F" title="角動量">角動量</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%9B%A2%E5%BF%83%E5%8A%9B" title="離心力">離心力</a></div></td></tr></tbody></table><div></div></td><td class="navbox-image" rowspan="6" style="width:1px;padding:0px 0px 0px 2px"><div><span typeof="mw:File"><a href="/wiki/File:Pendulum_1_(PSF).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Pendulum_1_%28PSF%29.png/150px-Pendulum_1_%28PSF%29.png" decoding="async" width="150" height="126" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Pendulum_1_%28PSF%29.png/225px-Pendulum_1_%28PSF%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Pendulum_1_%28PSF%29.png/300px-Pendulum_1_%28PSF%29.png 2x" data-file-width="1152" data-file-height="967" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">主要<a href="/wiki/%E7%89%A9%E7%90%86%E5%AE%9A%E5%BE%8B" title="物理定律">定律</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E7%89%9B%E9%A0%93%E9%81%8B%E5%8B%95%E5%AE%9A%E5%BE%8B" title="牛頓運動定律">牛頓運動定律</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%90%AC%E6%9C%89%E5%BC%95%E5%8A%9B%E5%AE%9A%E5%BE%8B" title="萬有引力定律">萬有引力定律</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%83%A1%E5%85%8B%E5%AE%9A%E5%BE%8B" title="胡克定律">胡克定律</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%81%94%E6%9E%97%E4%BC%AF%E7%89%B9%E5%8E%9F%E5%89%87" title="達林伯特原則">達林伯特原則</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%AD%90%E6%8B%89%E6%96%B9%E7%A8%8B_(%E5%89%9B%E9%AB%94%E9%81%8B%E5%8B%95)" title="歐拉方程 (剛體運動)">歐拉方程</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%93%88%E5%AF%86%E9%A0%93%E5%8E%9F%E5%89%87" title="哈密頓原則">哈密頓原則</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%9C%80%E5%B0%8F%E4%BD%9C%E7%94%A8%E9%87%8F%E5%8E%9F%E5%89%87" title="最小作用量原則">最小作用量原則</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">子領域</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E9%9D%9C%E5%8A%9B%E5%AD%B8" title="靜力學">靜力學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%81%8B%E5%8B%95%E5%AD%B8" title="運動學">運動學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%BD%88%E9%81%93%E5%AD%B8" title="彈道學">彈道學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%8B%95%E5%8A%9B%E5%AD%B8" title="動力學">動力學</a>（<a href="/wiki/%E5%89%9B%E9%AB%94%E5%8B%95%E5%8A%9B%E5%AD%B8" title="剛體動力學">剛體動力學</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%80%A3%E7%BA%8C%E4%BB%8B%E8%B3%AA%E5%8A%9B%E5%AD%B8" title="連續介質力學">連續介質力學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%B5%B1%E8%A8%88%E5%8A%9B%E5%AD%B8" title="統計力學">統計力學</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">應用</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="簡單機械" scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/%E7%B0%A1%E5%96%AE%E6%A9%9F%E6%A2%B0" title="簡單機械">簡單機械</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E6%96%9C%E9%9D%A2" title="斜面">斜面</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%A7%93%E6%A1%BF" title="槓桿">槓桿</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%BD%A4%E8%BD%86" title="轤轆">轤轆</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%9E%BA%E6%97%8B_(%E6%A9%9F%E6%A2%B0)" title="螺旋 (機械)">螺旋</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%A5%94" title="楔">楔</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E8%BC%AA%E8%BB%B8" title="輪軸">輪軸</a></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E5%B7%A5%E7%A8%8B%E5%AD%B8" title="工程學">工程學</a>（<a href="/wiki/%E6%A9%9F%E6%A2%B0%E5%B7%A5%E7%A8%8B" title="機械工程">機械工程</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%B5%90%E6%A7%8B%E5%B7%A5%E7%A8%8B" title="結構工程">結構工程</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%BB%BA%E7%AF%89%E5%B7%A5%E7%A8%8B" title="建築工程">建築工程</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%81%8E%E5%B1%B1%E8%BB%8A%E7%89%A9%E7%90%86" title="過山車物理">過山車物理</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%94%9F%E7%89%A9%E5%8A%9B%E5%AD%B8" title="生物力學">生物力學</a>（<a href="/wiki/%E9%81%8B%E5%8B%95%E7%94%9F%E7%89%A9%E5%8A%9B%E5%AD%B8" title="運動生物力學">運動生物力學</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%81%8A%E6%88%B2%E7%89%A9%E7%90%86" title="遊戲物理">遊戲物理</a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">睇埋</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E5%B9%BE%E4%BD%95%E5%AD%B8" title="幾何學">幾何學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%9B%BB%E7%A3%81%E5%AD%B8" title="電磁學">電磁學</a>（<a href="/wiki/%E5%8F%A4%E5%85%B8%E9%9B%BB%E7%A3%81%E5%AD%B8" title="古典電磁學">古典電磁學</a>）<span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%86%B1%E5%8A%9B%E5%AD%B8" title="熱力學">熱力學</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%8B%B9%E7%BE%A9%E7%9B%B8%E5%B0%8D%E8%AB%96" title="狹義相對論">狹義相對論</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%87%8F%E5%AD%90%E5%8A%9B%E5%AD%B8" title="量子力學">量子力學</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">理論史</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/%E4%BC%BD%E5%88%A9%E7%95%A5" class="mw-redirect" title="伽利略">伽利略</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E9%96%8B%E6%99%AE%E5%8B%92" class="mw-redirect" title="開普勒">開普勒</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E7%89%9B%E9%A0%93" class="mw-redirect" title="牛頓">牛頓</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%AD%90%E6%8B%89" class="mw-redirect" title="歐拉">歐拉</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%B0%9A%C2%B7%E9%81%94%E6%9E%97%E4%BC%AF%E7%89%B9" title="尚·達林伯特">尚·達林伯特</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%8B%89%E6%A0%BC%E6%9C%97%E6%97%A5" title="拉格朗日">拉格朗日</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E6%8B%89%E6%99%AE%E6%8B%89%E6%96%AF" title="拉普拉斯">拉普拉斯</a><span style="white-space:nowrap; font-weight:bold;"> ·</span> <a href="/wiki/%E5%A8%81%E5%BB%89%C2%B7%E5%93%88%E5%AF%86%E9%A0%93" title="威廉·哈密頓">哈密頓</a></div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div><a href="/wiki/Category:%E7%B6%93%E5%85%B8%E5%8A%9B%E5%AD%B8" title="Category:經典力學">古典力學類</a></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">由「<a dir="ltr" href="https://zh-yue.wikipedia.org/w/index.php?title=加速度&oldid=2185392">https://zh-yue.wikipedia.org/w/index.php?title=加速度&oldid=2185392</a>」收</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Special:%E5%88%86%E9%A1%9E" title="Special:分類">屬於1類</a>：<ul><li><a href="/wiki/Category:%E5%8A%9B%E5%AD%B8" title="Category:力學">力學</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">屬於1隱類：<ul><li><a href="/wiki/Category:%E6%9C%89%E7%9F%AD%E6%8F%8F%E8%BF%B0%E5%98%85%E6%96%87" title="Category:有短描述嘅文">有短描述嘅文</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> 呢版上次改係2024年9月22號 (禮拜日) 16:01 嘅事。</li> <li id="footer-info-copyright">呢度嘅所有文字係根據<a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike 牌照 4.0</a>嘅條款發佈；可能會有附加嘅條款。利用呢個網站，你同意<a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">利用條款</a>同埋<a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">私隱政策</a>。Wikipedia® 係<a rel="nofollow" class="external text" href="https://www.wikimediafoundation.org/">Wikimedia Foundation, Inc.</a> 嘅註冊商標，一個非牟利機構。</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">私隱政策</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:%E9%97%9C%E6%96%BC">關於維基百科</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:%E4%B8%80%E8%88%AC%E5%85%8D%E8%B2%AC%E8%81%B2%E6%98%8E">免責聲明</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">行為準則</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">開發人員</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/zh-yue.wikipedia.org">統計</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie聲明</a></li> <li id="footer-places-mobileview"><a href="//zh-yue.m.wikipedia.org/w/index.php?title=%E5%8A%A0%E9%80%9F%E5%BA%A6&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">手提版</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-w24zn","wgBackendResponseTime":216,"wgPageParseReport":{"limitreport":{"cputime":"0.554","walltime":"0.723","ppvisitednodes":{"value":2432,"limit":1000000},"postexpandincludesize":{"value":83861,"limit":2097152},"templateargumentsize":{"value":6422,"limit":2097152},"expansiondepth":{"value":10,"limit":100},"expensivefunctioncount":{"value":1,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":69000,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 555.864 1 -total"," 61.92% 344.181 1 Template:Reflist"," 55.17% 306.693 8 Template:Cite_book"," 13.17% 73.186 1 Template:Infobox_physical_quantity"," 12.74% 70.816 1 Template:Infobox"," 7.85% 43.650 3 Template:Navbox"," 7.08% 39.376 1 Template:About"," 6.11% 33.985 1 Template:古典力學"," 3.14% 17.474 2 Template:Navbox_subgroup"," 2.38% 13.216 23 Template:Math"]},"scribunto":{"limitreport-timeusage":{"value":"0.346","limit":"10.000"},"limitreport-memusage":{"value":21103304,"limit":52428800}},"cachereport":{"origin":"mw-api-int.codfw.main-849f99967d-cqsld","timestamp":"20241124045253","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"\u52a0\u901f\u5ea6","url":"https:\/\/zh-yue.wikipedia.org\/wiki\/%E5%8A%A0%E9%80%9F%E5%BA%A6","sameAs":"http:\/\/www.wikidata.org\/entity\/Q11376","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q11376","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2008-07-07T10:23:20Z","dateModified":"2024-09-22T16:01:22Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/7\/7d\/Gravity_gravita_grave.gif"}</script> </body> </html>