Physics

Physics, 29.08.2019 08:00, tommy6668

An electric motor has a rating of 4.0 × 10^2 watts.
how much time will it take for this motor to lift a
50.-kilogram mass a vertical distance of 8.0 meters?
[assume 100% efficiency.]
(1) 0.98 s (3) 98 s
(2) 9.8 s (4) 980 s

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An electric motor has a rating of 4.0 × 10^2 watts.
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