The power of a water pump is 2 kW. If `g = 10 m//s^2,` the amount of water it can raise in 1 min to a height of 10 m is :

Options

A. `2000 litres`
B. `1000 litres`
C. `100 litres`
D. `1200 litres`

Answer

D

Explanation

`P = (mgh)/(t) or m = (P xx t)/(g xx h)`
`m = (3000 xx 60 s)/(10 ms^(-2) xx 10m) = 1200 kg = 1200 litre`