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动量定理

> .如图所示，在水平面上B点的右侧为粗糙的，动摩擦因素为μ，左侧为光滑的。有一质量为m 2的小球乙静止放在B点。另一个质量为m 1的小球甲以速度v 0从A向右运动，与乙球发生对心弹性碰撞后返回。碰撞时间很短，重力加速度为g. 求：（1）碰撞后甲、乙两球的速率。（2）乙球在平面上刚停下时与甲球间的距离。

问题：

发布时间：2020-03-13

.如图所示，在水平面上B点的右侧为粗糙的，动摩擦因素为μ，左侧为光滑的。有一质量为m ₂的小球乙静止放在B点。另一个质量为m ₁的小球甲以速度v ₀从A向右运动，与乙球发生对心弹性碰撞后返回。碰撞时间很短，重力加速度为g.

求：（1）碰撞后甲、乙两球的速率。
（2）乙球在平面上刚停下时与甲球间的距离。

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