Question

the power of a pump is 2 kw. how much of water per minute can it raise to a height of 10 m? (g=10 ms-1)

Answer 1

Given, power of pump = 2kW =2000W

Time (t)= 60sec

Height (h) = 10m

g = 10m/s2

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

Work done = mgh = m ×10×10 =100m

Therefore, 2000W = 100m/60s

Therefore, m = 1200kg

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


please mark the answer brainliest.

Answer 2

Work/Time = Power

mgh / t = P

m/t = P / (gh)
= (2000 Watt) / (10 m/s² × 10 m)
= 200 kg/s

It pumps 200 kg of water in 1 second

In 1 minute it’ll pump 200 kg × 60 = 12000 kg of water

∴ It raises 12 tonnes (12000 kg) of water per minute