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Cloud [144]
3 years ago
15

A loaded elevator has a mass of 2.50 x 10^3 kg and is raised in 10.0s to a height of 50.0 m. How many kilowatts are required?

Physics
1 answer:
Morgarella [4.7K]3 years ago
8 0

Answer:

122.5 kW

Explanation:

m = mass of the loaded elevator = 2.50 x 10³ kg = 2500 kg

t = time taken to raise the elevator = 10.0 s

h = height gained by the elevator = 50.0 m

g = acceleration due to gravity = 9.8 m/s²

Power spent is given as

P = \frac{mgh}{t}

Inserting the values

P = \frac{(2500) (9.8) (50.0)}{10.0}

P = 122500 Watt

P = 122.5 kW                                             (Since 1 kW = 1000 W)

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