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Q27 A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of . It hits the floor of the elevator (length of the elevator = 3 m) and does not rebound. What is the heat produced by the impact? Would your answer be different if the elevator were stationary?
Answers (1)
In this case, the heat produced is the loss in the potential energy.
Thus,
heat produced = mg h
or
or
The heat produced (when the lift is stationary) will remain the same as the relative velocity of the bolt with respect lift still remains zero.
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