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 g+ax.m8rvh/ urgy m* b/round. A oafv j8zkh8t8-*qj g0person 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 acceleration is a and the magnitude of the *jo agh8jzfq0k8 - tv8acceleration 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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