Home
Class 12
PHYSICS
A circular disc is rolling in a horizont...

A circular disc is rolling in a horizontal plane. its total K.E. is 300J . What is its rotational K.E.?

A

50 J

B

100 J

C

115 J

D

1000 J

Text Solution

Verified by Experts

The correct Answer is:
D
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

A thin metal disc of radius 0.25m and mass 2Kg starts from rest and rolls down a smooth inclined plane. It' s rotational K.E. is 4 J at the bottom of the inclined plane. What is the linear velocity at the same point ?

A thin circular ring rolls down a smooth inclined plane of inclination 30degree without slipping. What is it's linear acceleration in the plane ?

A man standing on a rotating horizontal circular table, suddenly comes down. What is conserved in the process ?

A solution has an osmotic pressure of 0.821 atm at 300 K. Its concentration would be:

MBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-QUESTION BANK
  1. A ring is rolling on a surface without slipping. what is the ration of...

    Text Solution

    |

  2. When a sphere rolls without slipping the ratio of its kinetic energy o...

    Text Solution

    |

  3. A circular disc is rolling in a horizontal plane. its total K.E. is 30...

    Text Solution

    |

  4. Total K.E. of a solid sphere of mass M rolling with velocity v is

    Text Solution

    |

  5. A dices of mass M and radius R rolls without slipping on a leveled sur...

    Text Solution

    |

  6. What fraction of the total K.E. of a rolling ring is translational? (a...

    Text Solution

    |

  7. A body of mass 5 kg rotates at the rate of 5 Hz. if its radius of gyra...

    Text Solution

    |

  8. Assume earth to be a solid sphere of uniform density and radius 6.4 x ...

    Text Solution

    |

  9. The ratio of rotational and translational kinetic energies of sphere i...

    Text Solution

    |

  10. If a flywheel of mass 20 kg and diameter 1 m is rotation at 300 rpm.Wh...

    Text Solution

    |

  11. A body of M.I. of 3 kg xx m^2 rotation with an angular speed of 2 rad/...

    Text Solution

    |

  12. The torque necessary to produce an angular acceleration of 25 rad//s^2...

    Text Solution

    |

  13. A torque of magnitude 400 Nm acting on a body of mass 40kg produces an...

    Text Solution

    |

  14. A body starts rotating from rest due to a couple of 20 Nm and complete...

    Text Solution

    |

  15. The torque necessary to produce an angular acceleration of 25 rad//s^2...

    Text Solution

    |

  16. A wheel of moment of inertia 5 xx 10 ^(-3) kgm^2 is making 20 rev/s. ...

    Text Solution

    |

  17. If the moment of inertia of a body is 2.5 kgm^2,then the torque requir...

    Text Solution

    |

  18. A motor running at a rate of 1200 rev/min can supply torque of 80 Nm. ...

    Text Solution

    |

  19. A wheel of moment of inertia 5xx10^(-3) kgm^2 is making 20 revolutions...

    Text Solution

    |

  20. A circular disc of mass 10 kg and radius 0.2 m is set into rotation ab...

    Text Solution

    |