试题与答案

质量为m的小球(可看作质点)在竖直放置的光滑圆环轨道内运动,如图所示,小球在最高

题型:计算题

题目:

质量为m的小球(可看作质点)在竖直放置的光滑圆环轨道内运动,如图所示,小球在最高点A时的速度为,其中R为圆环的半径。求:

(1)小球经过最低点C时的速度;

(2)小球在最低点C对圆环的压力;

(3)小球到达位置B时的角速度。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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