Home
Class 12
PHYSICS
A wheel of moment of inertia 30 kg m^(2)...

A wheel of moment of inertia `30 kg m^(2)` is rotating at `10` rotations per minute. The work done in increasing its speed to `5` times its initial value will be

A

`10pi^(2) J`

B

`20 pi^(2) J`

C

`30 pi^(2) J`

D

`40 pi^(2) J`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE|Exercise Assignment (Section - B) Objective Type Questions (One option is correct)|57 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE|Exercise Assignment (Section - C) Objective Type Questions (More than one option are correct)|28 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE|Exercise Illustration|4 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

  • TEST 1

    AAKASH INSTITUTE|Exercise EXERCISE|9 Videos
AAKASH INSTITUTE-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - A) Objective Type Questions (One option is correct)
  1. A solid sphere is rolling without slipping on a horizontal plane. The ...

    Text Solution

    |

  2. If I(1) is the moment of inertia of a thin rod about an axis perpendic...

    Text Solution

    |

  3. A wheel of moment of inertia 30 kg m^(2) is rotating at 10 rotations p...

    Text Solution

    |

  4. A ring of mass 1kg and radius 1m is moving with a velocity of 1m//s by...

    Text Solution

    |

  5. A disc and a ring of the same mass are rolling down frictionless incli...

    Text Solution

    |

  6. The moment of inertia of a thing uniform rod of length L and mass M, a...

    Text Solution

    |

  7. Two bodies with moment of inertia l(1) and l(2) (l(1) gt l(2)) have eq...

    Text Solution

    |

  8. From a circular disc of mass M and radius R, a part of 60^(@) is remov...

    Text Solution

    |

  9. A body is rolling without slipping on a horizontal plane. The rotation...

    Text Solution

    |

  10. The angular velocity of a body is vecomega=3hati+5hatj+6hatk("radian"/...

    Text Solution

    |

  11. When a solid cylinder rolls without slipping the ratio of kinetic ener...

    Text Solution

    |

  12. The torque required to stop a wheel having moment of inertia 5xx10^(-3...

    Text Solution

    |

  13. The position vector of a point is (3hati-2hatj+6hatk)m. The i^(th) com...

    Text Solution

    |

  14. A particle performing uniform circular motion gas angular momentum L. ...

    Text Solution

    |

  15. A thin wire of length l and mass m is bent in the form of a semicircle...

    Text Solution

    |

  16. A constant torque acting on a uniform circular wheel changes its angul...

    Text Solution

    |

  17. Which of the following is correct ? (symbols have their ususal meaning...

    Text Solution

    |

  18. A dancer on ice spins faster when she folds her arms due to

    Text Solution

    |

  19. A solid sphere of radius r and mass m rotates about an axis passing th...

    Text Solution

    |

  20. The moment of inertia of a solid cylinder of density rho, radius of ba...

    Text Solution

    |