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 nfi72 r;5laavm egl6.t.malc5,q: dojd) n qye :shigible mass connects an object of mass M=10 kg to the ceiling of an elevator. The elevator experienmdjch:.:e.tay d,6 o nsl5 q)qces 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 mass M. Which one of the following choices describes the relationships between these forces?
A. $ F < T < G $
B. $F = G = T $
C. $ F < G < T$
D. $F = T < G $
E. $F < T = G$
参考答案: E
本题详细解析:
暂无
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