# A 5.8 x 10 4 watt elevator motor can lift

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A 5.8 × 104-watt elevator motor can lift a total weight of 2.1 × 104 newtons with a maximum constant speed of

(1)0.28 m/s
(2)0.36 m/s
(3)2.8 m/s
(4)3.6 m/s

Power is defined as the rate at which work is
done upon an object. Like all rate quantities, power is a time-based quantity.
Power is related to how fast a job is done. Two identical jobs or tasks can be
done at different rates - one slowly or and one rapidly.

P = Fv

Where P is the power

F is the weight

V is the average velocity

V = P/F

V = (5.8 x 10^4 W)/ (2.1 x 10^4 N)

V = 2.8 m/s

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