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动量定理

> 将物体P从置于光滑水平面上的斜面体Q的顶端以一定的初速度沿斜面往下滑，如所示．在下滑过程中，P的速度越来越小，最后相对斜面静止，那么由P和Q组成的系统（　　） A．动量守恒 B．水平方向动量守恒 C．最后P和Q以一定的速度共同向左运动 D．最后P和Q以一定的速度共同向右运动

问题：

发布时间：2024-09-08

将物体P从置于光滑水平面上的斜面体Q的顶端以一定的初速度沿斜面往下滑，如所示．在下滑过程中，P的速度越来越小，最后相对斜面静止，那么由P和Q组成的系统（　　）

A．动量守恒

B．水平方向动量守恒

C．最后P和Q以一定的速度共同向左运动

D．最后P和Q以一定的速度共同向右运动

参考答案：

提问用户：Ml***7G5

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