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HELP PLS! 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?
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Answers ( )
Answer: 600watts
Explanation:
Power of crane = ?
Work done by crane = 15000 J
Time taken = 25s
Recall that power is the rate of work done per unit time
i.e Power = work/time
Power = 15000J/25seconds
Power = 600watts
Thus, the power of the crane is 600watts