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a pump lifts 420kg of water every minute through a vertically height of 30m g=10n/kg a) calculate potential energy every minute b) useful power output of pump
Verified Answer
a pump lifts 420kg of water every minute through a vertically height o...
1) for potential energy = mgh

I.e. 420*10*30 = 126000 J

2) Power= work done/time

i.e. 126000/60

= 2100 W
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a pump lifts 420kg of water every minute through a vertically height of 30m g=10n/kg a) calculate potential energy every minute b) useful power output of pump Related: NCERT Solutions, Work and Energy, Class 9, Science
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