An electric pump on the ground floor of a building taken 15 minutes to fill a tank of volume 30 m^(3) with water. If the tank is 40 m above the ground and the efficiency of the pump is 30%, find the electric power consumed by the pump in filling the tank. [density of water = 10^(3)kg//m^(3)]

An electric pump on the ground floor of a building taken 15 minutes to

1.	An electric pump on the ground floor of a building taken 15 minutes to fill a tank of volume 30 m^(3) with water. If the tank is 40 m above the ground and the efficiency of the pump is 30%, find the electric power consumed by the pump in filling the tank. [density of water = 10^(3)kg//m^(3)]
Answer» SOLUTION :Mass of the water to be filled = (volume of the tank) `XX` density of water `m=30xx10^(3)KG` `h=40 m, t=15xx60=900` sec. Efficiency `eta = 30%` Inputpower `P_(i)=(100)/(eta)xx(mgh)/(t)` `= (100xx30xx10^(3)xx9.8xx40)/(30xx900)=43.56 KW`