Question

An electric pump has 2kW 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.

Explanation:

Answer 2

Explanation:

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.