Home
Class 11
PHYSICS
Give an example in which a force does wo...

Give an example in which a force does work on a body but fails to change its Kinetic energy.

Text Solution

Verified by Experts

When a body is ppulled over a rough horizontal surface with a uniform velocity. Work is done ono the body by the applied force, but its KE remains unchanges.
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    PRADEEP|Exercise Short Answer Question|52 Videos

  • WORK, ENERGY AND POWER

    PRADEEP|Exercise Long Answer Question|24 Videos

  • WORK, ENERGY AND POWER

    PRADEEP|Exercise Conceptual Problems|27 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise Assertion- Reason Type Questions|19 Videos

Similar Questions

Explore conceptually related problems

Give an example of motion in which the force does no work.

Is it possible exert a force which does work on a body without changing its kinetic energy? If so, give example.

Give example of a situation in which an applied force does not result in a change in kinetic energy.

Assertion :- According work energy theorem net work done on a body is equal to change in its kinetic energy. Reason :- The work energy theorem is independent of Newton's second law.

The total work done on a particle is equal to the change in its kinetic energy

Give one example each in which a force does (a) positive work (b) negative work and (c ) zero work.

Give one example each where: (a) a force moves a stationary body. (b) a force stops a moving body (c) a force changes the speed of a moving body. (d) a force changes the direction of a moving body (e) a force changes the shape (and size) of a body.

Statement -1: The work done by all forces on a system equals to the change in kinetic energy of that system . This statement is true even if nonconservative forces act on the system. Statement -2: The total work done by internal forces may be positive.

PRADEEP-WORK, ENERGY AND POWER-Very Short Anwer Question.
  1. What is work done by the force of tension in the string of a simple pe...

    Text Solution

    |

  2. What is represented by area under the force displacement curve?

    Text Solution

    |

  3. Give an example in which a force does work on a body but fails to chan...

    Text Solution

    |

  4. Does a man standing at rest on a moving truck possess KE?

    Text Solution

    |

  5. Out of joule, calorie, kilowatt and electron volt, which one is not th...

    Text Solution

    |

  6. Is power a scalar or vector ?

    Text Solution

    |

  7. Name the physical quantity, which is expressed as force times velocity...

    Text Solution

    |

  8. When is KE of a planet revolving around the sunn maximum?

    Text Solution

    |

  9. What is work done by centripetal force in moving on body half-cycle on...

    Text Solution

    |

  10. Show graphically the variation of potential energy of an object thrown...

    Text Solution

    |

  11. What is spring constant ? What are its SI units?

    Text Solution

    |

  12. Name the process in which momentum changes but KE does not.

    Text Solution

    |

  13. What is the source of KE of falling rain drops ?

    Text Solution

    |

  14. What is work done in holding a 15kg suitcase while waiting for a bus f...

    Text Solution

    |

  15. Is it practically possible to have situtations where (E-V)lt0?

    Text Solution

    |

  16. Can K.E. of a system be increased or decreased without applying any e...

    Text Solution

    |

  17. Does the sun do any work on earth, when earth revoves around the sun i...

    Text Solution

    |

  18. Does K.E. depend upon the direction of motion involved ? Can it be ne...

    Text Solution

    |

  19. Name the largest and smallest practical unit of energy.

    Text Solution

    |

  20. Is work done by a non conservative force always negative ? Comment.

    Text Solution

    |