Question

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

Answer 1

Answer:

Power (P) = 2 kW = 2000 W

Power (P) in Watts = J/s

1 Watt = 1 J / s

Therefore, 2000 W = 2000 J/s

One minute = 60 seconds

 

Power (P) is also given by

P = Work Done (W)/(t) ...(1)

w = mgh  

Height (h) = 10m

g = 9.8 m/s2  

 

Applying all the abovve data in equation (1)

 

P = (m x 9.8 x 10)/60

2000 = (m x 9.8 x 10)/60

Therefore, m = 1224.489 Kg

 

Thus, the given electric pump can lift 1224.489 Kg, every minute to height of 10m

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