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物体做圆周运动的条件
更新时间: 2020-09-22 00:00:00  

1、具有初速度(初速度不为零);

2、始终受到大小不变,方向垂直于速度方向,且在速度方向同一侧的合外力。

3、没有摩擦力;

4、合外力指向圆心。

关键词: 物体 圆周 运动 条件

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