本题目来源于试卷: Overweight and underweight,类别为 美国物理杯赛(Physics Bowl)
[单选题]
11.10: A string of negligibks gbo/33 /whzjiwf4vo .3gi2le mass connects an wn d:szqrozd7 az36z(s-)y) cy kn05oobject of mass M=10 kg to the ceiling of an elevator. The elevator experiences a constant downward speed of 3.0 m/s. Let Trepresent the magnitude of the force on the mass M by the string (tension), G represent the magnitude of the gravitational force by the Earth acting on the mass M hanging in the elevator, and F represent the magnitude of the net force acting on the massrzdwok sc(7nyq: 5y 03) a6ozz)szn-d M. Which one of the following choices describes the relationships between these forces?
A.
B.
C.
D.
E.
参考答案: E
本题详细解析:
暂无
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