资源描述
第,3,节圆周运动,1/67,2/67,转动快慢,线速度方向,3/67,方向,大小,m,2,r,圆心,协力,分力,4/67,不变,不停改变,5/67,圆周切线方向,6/67,切线方向,圆心,向心,7/67,8/67,9/67,10/67,11/67,12/67,13/67,14/67,15/67,16/67,17/67,18/67,19/67,20/67,21/67,22/67,23/67,24/67,25/67,26/67,27/67,28/67,29/67,30/67,31/67,32/67,33/67,34/67,35/67,36/67,37/67,38/67,39/67,40/67,41/67,42/67,43/67,44/67,45/67,46/67,47/67,48/67,49/67,50/67,51/67,52/67,53/67,54/67,55/67,56/67,57/67,58/67,59/67,60/67,61/67,62/67,63/67,64/67,65/67,66/67,67/67,
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