Home
Class 12
PHYSICS
If the angular velocity of a body increa...

If the angular velocity of a body increases by `20%`. At what percentage the kinetic energy of rotation will increase?

Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    MBD PUBLICATION|Exercise QUESTION BANK|193 Videos
  • MOVING CHARGES AND MAGNETISM

    MBD PUBLICATION|Exercise QUESTION BANK|148 Videos

Similar Questions

Explore conceptually related problems

The momentum of a body decreases by 20% , the percentage decrease in Kinetic energy will be

If the momentum of a body increases by 20% , the percentage increases in K.E. will be

The kinetic energy of the body is increased by 300% . The percentage increases in momentum of the body will be

What is the percentage change in the kinetic energy of a body when its momentum is halved ?

A body moving under the action of a force. Suddenly force is increased to such an extent that it's kinetic energy is increased by 100% . The momentum increases by

MBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-QUESTION BANK
  1. Two bodies 1 and 2 of moment of inertia I1 and I2 have the same kineti...

    Text Solution

    |

  2. If a body of mass 1 kg is revolving on a circular path of diameter 2.0...

    Text Solution

    |

  3. If the angular velocity of a body increases by 20%. At what percentage...

    Text Solution

    |

  4. A fly wheel rotation about an axis has a kinetic energy of 225J when i...

    Text Solution

    |

  5. A fly wheel rotation about a fixed axis has a kinetic energy of 360Jou...

    Text Solution

    |

  6. The K.E. of a body is 3 Joule and moment of inertia is 6 Kgm^2. What w...

    Text Solution

    |

  7. When the speed of fly wheel is increased from 240 r. p. m. to 360 r. p...

    Text Solution

    |

  8. A solid disc is rotating at an angular speed of 20 rad//s. It is decel...

    Text Solution

    |

  9. A thin metal disc of radius 0.25m and mass 2Kg starts from rest and ro...

    Text Solution

    |

  10. The diameter of a disc is increased by 2% without changing it' s mass....

    Text Solution

    |

  11. An automobile engine develops a power of 100 Killowalt, when rotating ...

    Text Solution

    |

  12. A constant torque of 1500 N-m turns a wheel of Ml 300 kg-m^2 about an ...

    Text Solution

    |

  13. A torque of 100 N-m acting on a wheel at rest, rotates it through 200 ...

    Text Solution

    |

  14. The instantaneous angular position of a point on a rotating wheel is g...

    Text Solution

    |

  15. The radius of gyration of a body about an axis at a distance of 6 cm f...

    Text Solution

    |

  16. A disc of mass 2 kg is rollng on a horizontal surface without slipping...

    Text Solution

    |

  17. What is the moment of inertia of a solid sphere of radius R and densit...

    Text Solution

    |

  18. The moment of inertia of two spheres of equal masses about their diame...

    Text Solution

    |

  19. A body of a mass 2 kg is rotating on a circular path of radius 0.5 m w...

    Text Solution

    |

  20. A man standing on a rotating horizontal circular table, suddenly comes...

    Text Solution

    |