Physics, 17.04.2020 18:26 SethSimunek
Two elevators, A and B, move at constant speed. Elevator B moves with twice the speed of elevator A. Elevator B weighs twice as much as elevator A. Compared to the power needed to lift elevator A, the power needed to lift elevator B is:
(1) the same
(2) half as great
(3) twice as great
(4) four times as great
Answers: 2
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Two elevators, A and B, move at constant speed. Elevator B moves with twice the speed of elevator A....
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