本题目来源于试卷: Physics Unit5: Circular Motion & Gravitation，类别为 通用国际物理
[单选题]
Consider a particle moving witgb7cscr ut6 y/ k(( x7d9jdyo8h consme/n m 6s+a5zjtant speed such that its acceleration of constaneamn6z/ +s5mj t magnitude is always perpendicular to its velocity.
A. It is moving in a straight line.
B. It is moving in a circle.
C. It is moving in a parabola.
D. None of the above is definitely true all of the time.
参考答案: B
本题详细解析:
暂无
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