a girl whose mass is 40kg walk up a fight of steps each 150mm height in second find the average power developed (g=10m/5'2

Answer 1

no answer

Answer 2

no seconds...

Answer 3

p =work / time
p= fxs
p = mgh / t

Answer 4

given that mass= 40kg
height= 150mm × 20 = 300
gram= 10m/s
work done = mgh
40 × 300× 10
=120000
power= w/t
=120000/10
= 12000w