An electric water pump rate 1.5 kW, lifts 200kg of water through a vertical height of 6 meters in 10 seconds. What is the efficiency of the pump? [g = 10ms-2, neglecting air resistance]

Patrickhillsgraphics

3 years ago

Data:
Power=1.5kW= 1.5*1000
T=10s Distance= 6m

Power= Workdone Divided by Time
1500= W divided by 10
(Cross multiply)

1500*10= W= work in put.

Efficiency= w. Output ÷ w. Input *100

E= (200* 10* 6 ÷ 15000. ) *100
E= 80%

Thank you🙂

Patrickhillsgraphics

3 years ago

Wrong calculations

moks97

7 years ago

the question that was given to me did not contain the accurate value as used in the solution, infact no value was given to me at all

godstamtam

7 years ago

I dont understand