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The power of water pump is 5kw
Asked by tnlakshmi0123 | 14 Aug, 2021, 12:06: PM
Energy Utilized by Pump in 1 min  = Power × time = 5000 W × 60 s = 3 × 105 J

Energy required to lift m kg of water to a height h =  ( m g h )

Since energy utilized by the pump is to lift m kg of water to a height h , then we have

( m × g × h ) = 3 × 105 J

Mass of water raised to a height  h = 15 m is given as

m = ( 3 × 105 ) / ( 10 × 15 ) = 2000 kg

Hence mass of water raised by pump = 2000 kg  = 2000 L

( mass of 1 Litre water = 1 kg )

Answered by Thiyagarajan K | 14 Aug, 2021, 12:56: PM

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