Question

A person weighing 70 kg wt lifts a mass of 30 kg to the roof of a building 10 m high. If he takes 50
second to do so, then the power spent is (g =9.8 m/s2
)
1) 19.6 W 2) 196 W 3) 300 W 4) 50 W

Answer 1

Thanks for your points sorry friend for my answer.

Answer 2

Answer:

300 W

Explanation:

because power is equal to force*displacement/time