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stellarik [79]
2 years ago
15

a set of pulleys is used to lift a piano weighing 1,000 netwons. the piano is lifted 3 meters in 60 seconds. How much power is u

sed
Chemistry
2 answers:
DENIUS [597]2 years ago
6 0

P = W/t

P = F.s/t

P = 1000.3/60

P = 50 watt

NARA [144]2 years ago
4 0

Answer:

50 watts

Explanation:

Formula

Power = Work / time

Work = Force  * distance        Substitute the formula for work into power

Power = Force * distance / time

Givens

F = 1000 N

d = 3 meters

t = 60 seconds

Solution

Put the givens into the power formula

Power = 1000 * 3 / 60

Power = 50 watts

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