Home
Class 12
PHYSICS
The moment of inertia of the body about ...

The moment of inertia of the body about an axis is 1.2 kg `m^(2)`. Initially the body is at rest. In order to produce a rotational kinetic energy of 1500J, an angualr acceleration of 25 `rad/s^(2)` must be applied about the axis for the duration of

A

4s

B

2s

C

8s

D

10s

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET 22

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Physics & chemistry|1 Videos

  • PRACTICE SET 24

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper 1 (Physics and Chemistry)|50 Videos

Similar Questions

Explore conceptually related problems

Moment of inertia of a body about a given axis is 1.5 kg m^(2) . Initially the body is at rest. In order to produce a rotational kinetic energy of 1200 J, the angular acceleration of 20 rad//s^(2) must be applied about the axis for a duration of _________ (in sec).

The moment of inertia of a body about a given axis is 1.2 kg m^(2) . Initially, the body is at rest. In order to produce a rotational KE of 1500 j , for how much duration, an acceleration of 25 rad s^(-2) must be applied about that axis ?

The moment of inertia of a body about a given axis is 1.2 kg m^(2) . Initially, the body is at rest. In order to produce a rotational KE of 1500 J , for how much duration, an acceleration of 25 rad s^(-2) must be applied about that axis ?

The moment of inertia of a body about a given axis is 3.6" kg m"^(2) . Initially, the body is at rest. In order to produce a rotational K.E. of 800 J, an acceleration of 15 rad s must be applied about that axis for

The moment of inertia of a body about a given axis of rotation depends upon :-

The moment of inertia of a body is 2.5 kg m^(2) . Calculate the torque required to produce an angular acceleration of 18 rad s^(-2) in the body.

The rotational kinetic energy of a rigid body of moment of inertia 5 kg-m^(2) is 10 joules. The angular momentum about the axis of rotation would be -

Moment of inertia of a body about an axis is 4kg-m^2 . The body is initially at rest and a torque of 8Nm starts acting on it along the same axis. Workdone by the torque in 20s , in joules is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 23-Paper-1(PHYSICS & CHEMISTRY)
  1. A partcle rests on the top of a hemisphere of radius R. Find the small...

    Text Solution

    |

  2. Relative permeability of iron is 5500, then its magnetic susceptibilit...

    Text Solution

    |

  3. The moment of inertia of the body about an axis is 1.2 kg m^(2). Initi...

    Text Solution

    |

  4. Let the x-z plane be the boundary between two transparent media. Mediu...

    Text Solution

    |

  5. The breaking strength of a rod of diameter 2cm is 2xx10^(5)N. Then tha...

    Text Solution

    |

  6. A metallic rod of Young's modulus 2xx10^(11)Nm^(2) undergoes a strain ...

    Text Solution

    |

  7. A cyclotron can accelerate

    Text Solution

    |

  8. The work done in increasing the size of a soap film from 10cmxx6cm to ...

    Text Solution

    |

  9. A potentiometer having the potential gradient of 2 mV//cm is used to m...

    Text Solution

    |

  10. An ammeter gives full deflection when a current of 2 amp. Flows throug...

    Text Solution

    |

  11. Eight dipoles of charges of magnitude e are placed inside a cube. The ...

    Text Solution

    |

  12. The internal resistances of two cells shown are 0.1Omega and 0.3 Omega...

    Text Solution

    |

  13. Two gases A and B at same pressure contain number of moles n(1) and n(...

    Text Solution

    |

  14. Two bodies are at temperature 27^(@) and 927^(@)C. The heat energy rad...

    Text Solution

    |

  15. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

    Text Solution

    |

  16. A convex lens of focal length 30 cm produces 5 times magnified real im...

    Text Solution

    |

  17. An ideal Black-body at room temperature is thrown into a furnace. It i...

    Text Solution

    |

  18. A particle is vibrating simple harmonically with amplitude 'a'. The di...

    Text Solution

    |

  19. A particle of mass 1 kg is moving in SHM with path length 0.01 m and a...

    Text Solution

    |

  20. A body of mass 5 kg is whirled in a vertical circle by a string 1 m lo...

    Text Solution

    |