Question

kon solve kr dga.. Challenge for u

Answer 1

given
mass= 50 kg
stairs= 45
time taken=9 sec
power=?
g=10m/s^2

power= work done/ time
and work done= m*g*h

height = 15cm*45steps=675cm or 6.75 m

power= 50*6.75*10/ 9
=375watt

hope it helps!

Answer 2

hope this helps you.
please follow me if you like the answer.