本题目来源于试卷: Circular Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
08.35: Astronauts on wu a8mk0w55iu ic2 e;cthe Moon perform an experiment with a simple xkzjw07tc,nprf( w;j51 (av h pendulum that is rel (, jvw0hjr7fc1p; z xkwn(t5aeased from the horizontal position at rest. At the moment shown in the diagram with $0^{\circ} < \theta < 90^{\circ}$ , the total acceleration of the mass may be directed in which of the following ways?
A. straight to the right
B. straight to the left
C. straight upward
D. straight downward
E. straight along the connecting string toward point P (the pivot)
参考答案: A
本题详细解析:
暂无
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