Question

A body is weight 1200m is raised from a depth of 200m in 4 minutes to ground level the power developed is ​

Answer 1

Answer:

Power = work done per unit time.

Work done in bringing the 1200 N load upto a level of 200 m is 1200×200=240000J. 

This is done in 4 min=240 s

Thus, power =240s240000J=1000 W