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冲量

> 如图所示，一单摆摆长为L，摆球质量为m，悬挂于O点。现将小球拉至P点，然后释放，使小球做简谐运动，小球偏离竖直方向的最大角度为θ。己知重力加速度为g。在小球由P点运动到最低点P′的过程中 [ ] A．小球所受拉力的冲量为0 B．小球所受重力的冲量为 C．小球所受合力的冲量为 D．小球所受合力的冲量为

问题：

发布时间：2024-09-11

如图所示，一单摆摆长为L，摆球质量为m，悬挂于O点。现将小球拉至P点，然后释放，使小球做简谐运动，小球偏离竖直方向的最大角度为θ。己知重力加速度为g。在小球由P点运动到最低点P′的过程中

[ ]
A．小球所受拉力的冲量为0
B．小球所受重力的冲量为
C．小球所受合力的冲量为
D．小球所受合力的冲量为

参考答案：

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