第,2,节牛顿第二定律两类动力学问题,1/52,正比,反比,相同,2/52,静止,匀速直线运动,宏观,低速,3/52,运动情况,受力情况,加速度,牛顿第二定律,4/52,米,千克,牛顿,米,/,秒,5/52,6/52,7/52,8/52,9/52,10/52,11/52,12/52,13/52,14/52,15/52,16/52,17/52,18/52,19/52,20/52,21/52,22/52,23/52,24/52,25/52,26/52,27/52,28/52,29/52,30/52,31/52,32/52,33/52,34/52,35/52,36/52,37/52,38/52,39/52,40/52,41/52,42/52,43/52,44/52,45/52,46/52,47/52,48/52,49/52,50/52,51/52,52/52,