Q. 243.7( 4 Votes )

A water pump lift

Answer :

Rate = 30 kg/minute = 0.5 kg per sec

We need to pump 0.5 kg of water to a height of 10m upwards in 1 sec.

Power=Work done/Time

= mass × acceleration due to gravity × height/ time

= 0.5 × 9.8 × 10

= 49 J/s or W

= 49/746 horsepower

= 0.066 hp

= 6.6×10^-2 hp

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