Question

a water comprises 50 litres of water to a height of 25 m in 5 second. calculate the power which the pump supplies. ( take g=10N kg and density of water =1000 kg metre cube)

Answer 1

ans is 2500W
see the pic
hope not wrong and helps you

Answer 2

Height = 25m

Time = 5s

Volume = 50l

${ \pink{ \bf{ Let's \: convert \: volume \:to \:density: }}}$

density = mass / volume

So,

${ \pink{ \bf{ 1m² = 1000l }}}$

${ \pink{ \bf{ density = mass / volume }}}$

1000=mass/(1/1000×50)

mass=1000×50×1/1000

${ \pink{ \bf{ =50kg }}}$

${ \pink{ \bf{W=F=mg=50×10=500 }}}$

P=500×25/5

${ \pink{ \bf{P=2500W \: Ans }}}$