本题目来源于试卷: Circular Motion,类别为 美国物理杯赛(Physics Bowl)
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08.15: A particle c d3 z. a /(n xhmg*/pnkyod6wce -pg/t-ontinuously moves in a circular p d2 d la 3dfdp0s5u*:fiath at constant speed in a counter- clockwise direction. Consider a time in i d:203slu*fdpd fda5terval during which the particle moves along this circular path from point P to point Q. Point Q is exactly half-way around the circle from Point P.
What is the direction of the average acceleration during this time interval?
A.
B.
C.
D.
E.
参考答案: BD
本题详细解析:
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