车m1重量是0.2kg,它以每秒0.8m的速度碰到了一个重量是0.2kg在静止状态的车m2,车m1停了m2被撞后朝着m1的方向继续运行,请问m2车来能干的速度是多少?Acartofmassm1=0.2kgmoveswithavelocityof0.8m/s

Question

车m1重量是0.2kg,它以每秒0.8m的速度碰到了一个重量是0.2kg在静止状态的车m2,车m1停了 m2被撞后朝着m1的方向继续运行,请问m2车来能干的速度是多少?
A cart of mass m1 = 0.2 kg moves with a velocity of 0.8 m/s to the right on a frictionless track.It collides with another cart of mass m2 = 0.2 kg at rest.Cart m1 stops and m2 moves in the direction that m1 was traveling.What is the velocity of m2?

Answer 1

0.8 由于m1 m2质量相等 会发生速度交换 具体计算如下
m1v1=m2v2;v2=0.8