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> 一质点在水平面内以速度v做匀速圆周运动，如图所示．质点从位置A开始，经半个圆周，质点所受合力的冲量大小为：（　　） A．2mv B．πmv C．0 D． 2 mv

问题：

发布时间：2024-09-08

一质点在水平面内以速度v做匀速圆周运动，如图所示

．质点从位置A开始，经半个圆周，质点所受合力的冲量大小为：（　　）

A．2mv B．πmv C．0 D．

2

mv

参考答案：

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一质点在水平面内以速度v做匀速圆周运动，如图所示 ．质点从位置A开始，经半个圆周，质点所受合力的冲量大小为：（ ） A．2mv B．πmv C．0 D． 2 mv

可能感兴趣的题目：

一质点在水平面内以速度v做匀速圆周运动，如图所示

．质点从位置A开始，经半个圆周，质点所受合力的冲量大小为：（　　）

A．2mv B．πmv C．0 D．

2

mv