Question

An engine of 10kw power is used to pumb water from a pit 100m deep. Calculate the qauntity of water in kiloliters which it can pumb out in one hour.

Answer 1

Answer:

Height , h = 20 cm <br> Time , t= 1 min = 60 s <br> Mass of wtaer m = 2400 kg ,

<br> Work done in lifting the water from depth h <br>

<br> Output power of motor <br>

<br>

<br> Efficiency ,