Question

A motor can pump up water to fill a tank of volume 500 meter cube in 25 min which is praised at height of 20 meter if the efficiency of motor is 40 prcent Calicute the power of motor

Answer 1

Answer:

Power of motor, P=

η

1

t

ρVgh

Where,

ρ = Density,V = Volume, h = Heigth t = Time and η =efficiency of motor

P=

0.4

1

25×60

1000×50×10×20

=16666.67 J

P=

746

16666.67

=22.23hp

Power of motor is 22.23 hp