Question

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?

Answer 1

Answer: 600watts

Step-by-step 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