Circular Motion (id: 3b297c844)

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 unn .ber;-begae30:bh jifomjaan wtd4ky2dk 3/3;rm circular motion as shown in the figure. The string to which the mass is attached has a lengtynmt3 wda3jk d 4a;k/2h 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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