









FT=MV FT:冲量 MV:动量 F:物体所受的力 T:力所持续的时间 M:物体的质量 V:速度




















铰链装在哪个轴,锚点参数就调整哪个轴,
物体绕着哪个轴转动,哪个轴参数调整为1

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