Home
Class 12
PHYSICS
An engine pumps water continously throug...

An engine pumps water continously through a hole. Peeds 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 eing imparted to the water.

A

`1/2kv^(2)`

B

`1/2kv^(3)`

C

`(v^(2))/(2k)`

D

`(v^(3))/(2k)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-C (OBJECTIVE TYPE QUESTIONS) (MORE THAN ONE OPTIONS ARE CORRECT)|16 Videos
  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-D (LINKED COMPREHENSION TYPE QUESTIONS) (COMPREHENSION-I)|3 Videos
  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-A (OBJECTIVE TYPE QUESTIONS (ONE OPTIONISCORRECT)|60 Videos
  • WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 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 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?

An engine pumps liquid of density d continuosly through a pipe of cross-section are 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

An engine pumps 800 kg of water through height of 10 m in 80 s. Find the power of the engine if its efficiency is 75%

A pump ejects 12000 kg of water at speed of 4m/s in 40 second. Find the average rate at which the pump is working.

AAKASH INSTITUTE-WORK, ENERGY AND POWER-SECTION-B (SUBJECTIVE TYPE QUESTIONS) (ONE OPTIONS IS CORRECT)
  1. A particle of mass m is moving in a horizontal circle of radius r, und...

    Text Solution

    |

  2. A particle is placed on the top of a hemispherical shell of same mass....

    Text Solution

    |

  3. A bob is tied up with a string AB of length l. End A of the string is ...

    Text Solution

    |

  4. If linear momentum if increased by 50% then kinetic energy will be inc...

    Text Solution

    |

  5. A body of mass m was slowly pulled up the hill by a force F which at e...

    Text Solution

    |

  6. Work done by a spning force is

    Text Solution

    |

  7. A small body of mass m slides without friction from the top of a hemi...

    Text Solution

    |

  8. A motor drives a body along a straight line with a constant force. The...

    Text Solution

    |

  9. An engine pumps water continously through a hole. Peeds with which wat...

    Text Solution

    |

  10. A machine which is 75% efficient uses 12 J of energy in lifting up a 2...

    Text Solution

    |

  11. A bullet when fixed at a target with a velocity of 100 ms^(-1), penetr...

    Text Solution

    |

  12. A particle is rotated in a vertical circle by connecting it to a strin...

    Text Solution

    |

  13. The block of mass m is released when the spring was in its natrual len...

    Text Solution

    |

  14. Consider the spring blcok system shoen in the figure initially block m...

    Text Solution

    |

  15. Consider the spring block system shown in the figure. Initially block ...

    Text Solution

    |

  16. Consider the system shown in the figure. Coefficient of friction betwe...

    Text Solution

    |

  17. Consider the system shown in the figure. Coefficient of friction betwe...

    Text Solution

    |

  18. A particle of mass m initially moving with speed v.A force acts on the...

    Text Solution

    |

  19. A block of mass m is released from a height h from the top of a smooth...

    Text Solution

    |

  20. A particle of mass m initially at rest. A variabl force acts on the pa...

    Text Solution

    |