a water pump of 200w takes water from a 50m deep well.if efficiency of motor is 60%calculate mass of water lifted by water pump in 1 minute ? ANSWER fast I mark u brainleist
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A water pump, rated 400W, has an efficiency of 75%. If it is employed to raise water through a height of 40m, find the volume of water drawn in 10min.
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Text Solution
Solution :
OutputPower=η×Inputpower
=0.75×400=300W
Now,
P=dWdt=d(mgh)dt
dmdt=Pgh=30010×40=34kg=34×60kgmin−1=45kgmin−1
Hence, water drawn in 10min=45×10=450kgmin−1
Since density of water is 1000kgm−3, therefore, from
V=mρ=4501000=0.45m3
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