本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理
[单选题]
When an object is released from rest and falls in tmr(.9m o xh6fhhe n4- tywkp-d9o absence of friction, which-onp - 9ytkwd4 of the following is true concerning its motion?
A. Its acceleration is constant.
B. Its velocity is constant.
C. Neither its acceleration nor its velocity is constant.
D. Both its acceleration and its velocity are constant.
参考答案: A
本题详细解析:
暂无
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