本题目来源于试卷: Newton’s law of motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.28: An object is in free fall close to the ground. A tgv d e-o9n18kperson 7 f)wr4c6 tzxf e78ae8:dob b:sd:wcr intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s az7rdco ref8sftb c )6ww84e::bx7 da:cceleration is a and the magnitude of the acceleration from gravity is g.
A. a = g
B. a > g
C. a < g
D. a ≥ g
E. None of the previous relations must be true.
参考答案: E
本题详细解析:
暂无
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