Question

the power of a pump which can pump 500 kg of water to heigth 100m in 10s is

Answer 1

Power is the rate to do work.

P=W/t

P=F.h/t

P=mgh/t

P=500x9.8x100/10

P=49000J/s

Answer 2

Answer:

Power = Work Done / Time

Work Done = Force × Displacement

Force = Mass × Acceleration

Given that,

Mass = 500 Kg, Acceleration due to gravity = 10 m/s² ( Approximately )

=> Force = 500 × 10 = 5000 N

Displacement = 100 m

=> Work Done = 5000 N × 100 m = 5,00,000 J

Time = 10 seconds

=> Power = Work Done / Time

=> Power = 5,00,000 / 10

=> Power = 50,000 W or 50 KW

This is the required answer.