Home
Class 12
PHYSICS
An engine pumps water continuously throu...

An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water jet. What is the rate at which kinetic energy is impartd to water?

A

`Adv^(3)//2`

B

`(1//2)Adv`

C

`Adv^(2)//2`

D

`Adv^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|54 Videos

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|54 Videos

  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

An engine pumps water continously through a hose. Water leave the hose with a velocity v and m is the mass per unit length of the Water jet. What is the rate at Which kinetic energy is imparted to water?

An engine pumps water continously through a hose. Water leave the hose with a velocity v and m is the mass per unit length of the Water jet. What is the rate at Which kinetic energy is imparted to water?

An engine pumps water continously through a hole. The speed with which water pases through the hole nozzle is v and k is the mass per unit length of the water jet as it leaves the nozzle. Find the rate at which kinetic energy is being imparted to the water.

An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 ms^(1) . The mass per unit length of water in the pipe is 100 kgm^(-1) . What is the power of the engine? (a) 400 W (b) 200W (c) 100W (d) 800W

An engine pumps liquid of density ρ continuously through a pipe of cross-section area A. If the speed with which liquid passes through the pipe is v, then the rate at which kinetic energy is being imparted to the liquid by the pump is

The part of plant through which water reaches up to the leaves.

Ten litre of water per second is lifted from well through 20m and delivered with a velocity of 10 m/s, then the power of the motor is :

Water is flowing continuously from a tap of area 10^(-4)m^(2) the water velocity as it leaves the top is 1m//s find out area of the water stream at a distance 0.15 m below the top

Water is flowing condinuously from a tap of area 10^(-4)m^(2) the water velocity as it leaves the top is 1m//s find out area of the water stream at a distance 0.15 m below the top

An engine pumps water from a tank at the rate of 10 kg per second and ejects from a nozzle 7 m above the surface of the tank with a velocity of 20 m/s. What is the output power of the engine?

VMC MODULES ENGLISH-WORK ENERGY AND POWER -ENABLE
  1. A spring is held compressed so that its stored energy is 2.4 J. Its en...

    Text Solution

    |

  2. A spring is compressed between two toy carts to masses m1 and m2. When...

    Text Solution

    |

  3. An engine pumps water continuously through a hose. Water leaves the ho...

    Text Solution

    |

  4. A bullet of mass m moving with velocity v strikes a suspended wooden b...

    Text Solution

    |

  5. An open water tight railway wagon of mass 5 xx 10^3 kg coasts at init...

    Text Solution

    |

  6. A ball moving on a horizontal frictionless plane hits an identical bal...

    Text Solution

    |

  7. A ball after falling a distance of 5 meter rest hits elastically the f...

    Text Solution

    |

  8. A particle of mass m moving with velocity 1 m//s collides perfectly el...

    Text Solution

    |

  9. A billiard ball moving at a speed of 6.6 ms–1 strikes an identical sta...

    Text Solution

    |

  10. An explosion blows a rock into three parts. Two pieces go off at right...

    Text Solution

    |

  11. A small ball of mass m=1 g is placed at the bottom of a watch glass of...

    Text Solution

    |

  12. For the system shown in fig., initially the spring is compressed by a ...

    Text Solution

    |

  13. A light rod of length l is pivoted at the upper end. Two masses (each ...

    Text Solution

    |

  14. A machine, which is 72 percent efficient, uses 36 joules of energy in ...

    Text Solution

    |

  15. A force F=Ay^(2)+By+C acts on a body in the y-direction.The work done ...

    Text Solution

    |

  16. A force F= -khati+xhatj where k is a positive constant, acts on a prar...

    Text Solution

    |

  17. A force of F=0.5 N is applied on lower block as shown in figure. The w...

    Text Solution

    |

  18. The potential energy between two atoms in a molecule is given by U(x)=...

    Text Solution

    |

  19. The potential energy of a particle of mass 5 kg moving in the x-y plan...

    Text Solution

    |

  20. A long spring when stretched by x cm, has a potential energy U. On inc...

    Text Solution

    |