分析平面图形上点的加速度问题一般采用基点法，很少采用瞬心法。

Generally, base point method is used when we analyze the acceleration of a paint in the plane figure, we seldom use the instantaneous center method.

youdao

分析平面图形上点的加速度问题一般采用基点法，很少采用瞬心法。

Generally, base point method is used when we analyze the acceleration of a paint in the plane figure, we seldom use the instantaneous center method.

youdao