7 217) The power of a motor pump is 2Xw Hhow much water per minute can

1.	7 217) The power of a motor pump is 2Xw Hhow much water per minute can the pump raise toheight of 20 mtrs. (given g-10m)
Answer» Given, power of pump = 2kW =2000W Time (t)= 60sec Height (h) =20m g = 10m/s2 As you know, power =work done per unit time. Work done = mgh = m ×10×20 =200m Therefore, 2000W = 200m/60s Therefore, m = 600kg So, the pump can raise 600kg of water in one minute.

7 217) The power of a motor pump is 2Xw Hhow much water per minute can the pump raise toheight of 20 mtrs. (given g-10m)

Answer»

Given, power of pump = 2kW =2000W

Time (t)= 60sec

Height (h) =20m

g = 10m/s2

As you know, power =work done per unit time.

Work done = mgh = m ×10×20 =200m

Therefore, 2000W = 200m/60s

Therefore, m = 600kg

So, the pump can raise 600kg of water in one minute.