本题目来源于试卷: Circular Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.26: A 4.00 kg mass is in uniform circula -cb- tzh(xijbdn 3 5j,r motion as shown in the figure. Th 5x-+5do-r7wzldz o6b ot:wyae string to whi b d: 5aw5o-roty+xlzzo d-76 wch the mass is attached has a length of L = 3.00 m and forms an angle of $θ=50^{\circ}$with the vertical. What is the speed of the mass?
A. 5.23 m/s
B. 5.54 m/s
C. 5.98 m/s
D. 6.62 m/s
E. 6.90m/s
参考答案: A
本题详细解析:
暂无
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