Question

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Q: An electric pump has 2 kW power. How much water will pump lift every minute to a height of 10m ? ​

Answer 1

Explanation:

Given that :

Power of pump = 2kW =2 x 1000=2000W

Time (t)= 1min=60sec

Height (h) = 10m

g = 10m/s2

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

Work done = mgh = m ×10×10 =m x 100=100m

Therefore, 2000W = 100m/60s

Therefore, m = 1200kg

So, the pump can raise 1200kg of water in one minute.

Answer 2

Answer:

1200 is right answer ok and hope this helps you thanks