![](https://forum.eduzhixin.com/uploadfiles/20180813/1534150972b3227c54bbfc29aee3b9b8afdbbf560c.jpg)
![](https://forum.eduzhixin.com/uploadfiles/20180813/1534151014676676dc6698bf5d4ea885f0f977c657.jpg)
![](https://forum.eduzhixin.com/uploadfiles/20180813/1534151036b5eb926c1066479aa12a024d71e1e20d.jpg)
质心系中A绕着质心转,计算加速度时你没有计算向心加速度,只计算了切向加速度。
![](https://forum.eduzhixin.com//uploadfiles/1534151632584f6e714949e0e0643ed68a8706b1f6.jpg)