本题目来源于试卷: Circular Motion,类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.11: A girl twirls a small mass c unztk ;aidk.gb -d7wlb:4/v: onnec bggn2 ;lddi/be2y 7vk;way;4l (uc)fted to the end of a string counterclockwise in a ho b;u dd/y kvygl2)c; ial2ewgf(4n7 b;rizontal circle above her head. The figure shows an outline of the mass’s path viewed from above the twirling mass. If the girl needs the mass to pass through the point labeled P in the figure, at which lettered point on the path should she let go of the string?
A.
B.
C.
D.
E.
参考答案: B
本题详细解析:
暂无
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