What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s?
1 answer:
Answer: Option B) 600 W
Explanation:
Since power is the rate of work done per unit time
i.e Power = work/time
Given that:
power of a crane = ?
work done by crane = 15000 J
Time = 25 seconds
Power = 15000J / 25s
Power = 600 watts
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