Question

a person weighing 50kg runs up a hill weighing himself vertically 10 m in 20 sec calculate the power of person. g=10ms-2

Answer 1

Power is 250 Watt by using the formula
Power = Work / Displacement

Answer 2

here => force = m*g=>50*10=>500N
displacement => 10m
therefore work done = F*S=> 500*10=>5000j
therefore power => workdone /time
=>5000/20= 250 watt