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<HTML><HEAD><TITLE>new</TITLE><META content="text/html; charset=gb2312" http-equiv=Content-Type><LINK href="text.css" rel=stylesheet type=text/css><META content="Microsoft FrontPage 4.0" name=GENERATOR></HEAD><body leftmargin="15"><center><b><br>1 动量</b></center> <table border="0" cellpadding="0" cellspacing="0" width="560"> <tr> <td width="20"><b><font color="#0000FF">一、</font></b></td> <td width="540"><b><font color="#0000FF">质点的动量</font></b></td> </tr> <tr> <td width="20"></td> <td width="540"><img border="0" src="pic/3052_199.GIF" width="28" height="21"></td> </tr> <tr> <td width="20"><b><font color="#0000FF">二、</font></b></td> <td width="540"><b><font color="#0000FF">质点系的动量</font></b></td> </tr> <tr> <td width="20"></td> <td width="540"><img border="0" src="pic/3052_11.GIF" width="127" height="30"></td> </tr> <tr> <td width="20"></td> <td width="540"> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="52%"><b>问题：</b></td> <td width="48%" rowspan="3"> <p align="center"><img border="0" src="pic/3052_12.GIF" width="110" height="76"></td> </tr> <tr> <td width="52%"> <table border="0" cellpadding="0" cellspacing="0"> <tr> <td>某瞬时圆轮轮心速度为</td> <td><img border="0" src="pic/3052_13.GIF" width="20" height="26"></td> <td>，圆轮沿直线</td> </tr> </table> </td> </tr> <tr> <td width="52%">平动、纯滚动和又滚又滑时的动量是否相等？若沿曲线运动呢？</td> </tr> </table> </td> </tr> <tr> <td width="20"></td> <td width="540">这说明：动量是表征质系随质心平动强度的量。(没有反映质系全部运动强度)</td> </tr> <tr> <td width="20"></td> <td width="540"></td> </tr> <tr> <td width="560" colspan="2"> <p align="center"> <a href="3051_5.htm"><font color="#FF6666">[ 上一节 ]</font></a> <a href="3052_2.htm"><font color="#00CC00">[ 下一节 ]</font></a> </td> </tr></table><p><center></center><br> </p></BODY></HTML> ⌨️ 快捷键说明
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