Question

500 J of work are done in 4 seconds to lift a 40 kg box to the top of a high shelf. How much power was required to complete the lift?

Answer 1

work = power × time
500 = power × 4
power =125



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Answer 2

Your answer ...

Energy = power / Time

➡ $\bold{500J / 4s}$

➡$\bold{125 W}$