Circular Motion (id: b2b9ca697)

本题目来源于试卷: Circular Motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
96.24: A 2.0-kg ball isbg 94z-yxdi.b e*gs+l attached to a 0.80 m string and whirled in w3yntut9dl qp1b(1u1a horizontal circle at a constant speed of 6.0 m/s. See figure to the right. The wo1n uw1budq1 yl93 ttp(rk done on the ball during each revolution is:

A. $450J$
B. $90J$
C. $72J$
D. $16J$
E. $zero$


参考答案:  E


本题详细解析: 暂无

微信扫一扫，分享更方便