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提问人:网友lictor8888
发布时间:2022-01-07
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Under a force [图] applied at point [图], the trol...
Under a forceapplied at point, the trolley with weightis moving with acceleration a on a horizontal surface. Pointis the mass center of the trolley. By D’Alembert’s Principle, the inertial force on the trolley should be
A、
B、
C、
D、
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