Question

a man of 62 kg goes from ground floor to fourth floor using a stair case of 55 steps in 15 seconds.if height of each step is 20cm, find its power.hint power = work done /time=mgh/time g=10m/s2

Answer 1

m=62kg
Total hight=55*20=1100
W=62*11*10j
P=6820/15=454.666watt