Question

A water pump can raise 20 kg of water through a height of 10m in 10sec

Answer 1

Answer:

wrong question because what we have to do or find not written and in question 20kg of water is written wrong..

Answer 2

Answer:

A water pump can raise 20kg of water through a height of 10m in 10s. what is the total work done by the pump.

This is the right question.

Solution:

Given that,

Mass, m = 20 kg

Height, h = 10 m

Gravity, g= 10 m/S2

We need to find the work done by the pump. Here, the work done is given by :

W=mgh

=20×9.8×10

=1960 J

So, the work done by the pump is 1960 J.