Question

The power of a pump which can store 1000 kg of water in a water tank at a height of 12 m in 10 minute is​

Answer 1

Given:

A pump which can store 1000 kg of water in a water tank at a height of 12 m in 10 minute.

To find:

Power of pump ?

Calculation:

• Power is defined as the rate of doing work.

• In this case, the work done is equal to the Potential Energy of the water at that height.

$\therefore \: Power = \dfrac{W}{t}$

$\implies \: Power = \dfrac{mgh}{t}$

$\implies \: Power = \dfrac{1000 \times 10 \times 12 }{10 \times 60}$

$\implies \: Power = 10 \times 10 \times 2$

$\implies \: Power = 200 \: watt$

So, power of pump is 200 watt.