A man stands in an elevator moving up with a constant speed v. If the mass of the man is m and the mass of the elevator is M, determine the work done on the elevator in time t. Also calculate the power required for the elevator to work. (Assume 100% efficiency of the elevator and all forces arr pulling the elevator in the upward direction).
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Answer:
Work = (M+m)gvt, Power = (M+m)gv
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