Question

a water pump raises 50 liters of water through a height of 25 meters i 5 seconds. Find the power of pump

Answer 1

Answer:

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Explanation:

Mass=volume*density

=(50litres)(1000kg/m^3)

=(50/1000m^3)(1000kg/m^3)

=50kg

use, energy=mgh=50kg (10N/kg)(25m)

=12500Nm=12500j

power=energy/time

= 12500j/5sec

=2500j/sec

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

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