Question

50 kg person runs up the stairs 10 m high in 20 seconds. What is the power? (take g = 10 m/s²).


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Answer 1

mass,m= 50kg

height,S = 10m

time,T= 20s.

g= 10m/s²

P = W/T

=> P = F×S/T

=> P = m×g×S/T

=> P = 50×10×10

20

=> P = 5000

20

=> P = 250W or 0.25 kW

I hope it helps you.