Question

A weight lifter lifts 300kg from ground to a height 2m in 3sec. The avg power generated by him is

Answer 1

Mass = 300kg

Displacement = 2m

Time = 3sec

Average power = work done / total time

Work done = force × displacement

M×g×s

300×10×2

6000joules

Average power = 6000j / 3sec

2000w