Home
Class 11
PHYSICS
The power of a motor pump is 2kW. How mu...

The power of a motor pump is 2kW. How much water per minute the pump can raise to a heiht of 10 m ? (Given `g = 10 m//s^2)`

A

100L

B

1200L

C

1000L

D

2000L

Text Solution

Verified by Experts

The correct Answer is:
B
Power = Force `xx` Velocity
=Mass `xx ` Acceleration `xx` Velocity
`P=m(dv)/(dt)V`
`therefore Vdv=(Pdt)/(m)`
`therefore int_(0)^(2)=(Pt)/(m) therefore v^(2)=(2Pt)/(m)`
But P and m are constant .
`V^(2) prop t ` or ` v prop sqrt(t)`
Promotional Banner

Topper's Solved these Questions

  • FORCE, WORK AND TORQUE

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • FRICTIONAL IN SOLIDS AND LIQUIDS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

Similar Questions

Explore conceptually related problems

The power of a motor pump is 5 kW. How much water per minute the pump an raise to height of 20 m ? Take g = 10ms ^-2 .

The power of a water pump is 2 kW. If g = 10 m//s^2, the amount of water it can raise in 1 min to a height of 10 m is :

The power of water pump is 4 kW. If g=10 ms^(-2), the amount of water it can raise in 1 minute to a height of 20 m is

If the power of the motor of a water pump is 3kW , then the volume of water in llitres that can be lifted to a height of 10 m in one minute by the pump is (g = 10 ms^(-2))

An engine can develop a power of 5kW. How much time it will take to lift a mass of 100 kg to a height of 80 m? (g=10m//s^(2))