本题目来源于试卷: Rotational Dynamics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
97.39: A cylinder free pf.yy.:itmr,uqn,a 7 to turnaround a fixed axis has a string wra 3 yw.xr b 9gg;csiv r2x*k,+yzpped around it as shown to the right. The string is pulled with a force F equal to the cylinders weight. What is the acc 2z.ywk byri3 ,*;xsg9g xvc+releration of the string?
A. $2g$
B. $g$
C. $g/2$
D. $g/4$
E. $F/g$
参考答案: A
本题详细解析:
暂无
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