A water pump driven by petrol rises water at a rate of 0 5 m3 min 1 from a depth - Science - Work and Energy

Question

A water pump driven by petrol rises water at a rate of 0 5
m3 min–1 from a depth of 30 m If the
pump is 70% efficient, what power is developed by the engine?

Dinesh Pandey · Accepted Answer

Dear Student,

g=9
8 m/s2h=30 mdmdt=500 kg/mindmdt=50060 kg/s=253 kg/s70100×P=mghtP=mgh×10070×tP=100×253×9
8×30×170P=3500 W

A water pump driven by petrol rises water at a rate of 0.5 m3 min–1 from a depth of 30 m. If the pump is 70% efficient, what power is developed by the engine?

A water pump driven by petrol rises water at a rate of 0.5 m³ min^–1 from a depth of 30 m. If the pump is 70% efficient, what power is developed by the engine?