Question

Lee has been moving a crate that has a mass of 125 kg and required 120 J of work to move. The crate was moved a distance of 20 meters in 30 seconds. What was the power output?

Answer 1

Answer:   Output power , P= 4 watts

Explanation:We know that power is defined as the energy supplied per unit time.

Therefore Power, $P=\frac{Energy supplied}{Time taken}$

=> $P=\frac{120}{30} watts = 4 watts$

Thus power output is 4 watts