you missing the key point

the 'V' in your case should be the 'change of speed during the period of the 2 objects are touching', NOT the speed!, also not the speed that changed after they seprated.

所有跟帖： 

• "倆車受到F相同", 沒錯；但雙方司機受到的力卻不同，軟的一方受到的力大。 -DeepCreek- ♂ (0 bytes) () 04/05/2010 postreply 16:54:05

• 你不是說完美的非彈性碰撞嗎？那麽完美的話，加速度是相同的 -殺雨- ♂ (345 bytes) () 04/05/2010 postreply 17:42:03

• 我就知道你會引用牛頓力學定律：作用力=反作用力! 但我懶得再作解釋了。 -DeepCreek- ♂ (272 bytes) () 04/05/2010 postreply 19:27:09

• 一盆漿糊 -DeepCreek- ♂ (0 bytes) () 04/05/2010 postreply 20:07:38