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 th +)b fnn-gouwc7k;2m;)tlbvr e Moon perf k8 :28w1z hpjk:bupyf orm an experiment with a simple pendulum that is pfzjk:k8u82h:b 1w py released 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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