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> 如图所示，在光滑水平面上有一质量为 m的物体，在与水平方向成 θ 角的恒定拉力 F作用下运动，则在时间 t内（） A．重力的冲量为0 B．拉力F的冲量为Ft C．拉力F的冲量为Ftcosθ D．拉力F的冲量大小小于物体动量的变化量大小

问题：

发布时间：2020-03-13

如图所示，在光滑水平面上有一质量为 m的物体，在与水平方向成 θ
角的恒定拉力 F作用下运动，则在时间 t内（）

A．重力的冲量为0 B．拉力F的冲量为Ft

C．拉力F的冲量为Ftcosθ D．拉力F的冲量大小小于物体动量的变化量大小

参考答案：

提问用户：vG***5I7

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如图所示，在光滑水平面上有一质量为 m的物体，在与水平方向成 θ 角的恒定拉力 F作用下运动，则在时间 t内（ ） A．重力的冲量为0 B．拉力F的冲量为Ft C．拉力F的冲量为Ftcosθ D．拉力F的冲量大小小于物体动量的变化量大小

可能感兴趣的题目：

如图所示，在光滑水平面上有一质量为 m的物体，在与水平方向成 θ
角的恒定拉力 F作用下运动，则在时间 t内（）

A．重力的冲量为0 B．拉力F的冲量为Ft

C．拉力F的冲量为Ftcosθ D．拉力F的冲量大小小于物体动量的变化量大小