Home
Class 12
PHYSICS
Two rigid bodies have the same angular m...

Two rigid bodies have the same angular momentum about their axes of symmetry. If the same torque is applied about their axes, then the ratio of the time after which they will be stopped

A

`1:1`

B

`1:2`

C

`2:1`

D

data is insufficient

Text Solution

Verified by Experts

The correct Answer is:
A
`L = I omega = mrV`
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER - MH-CET 2018

    NIKITA PUBLICATION|Exercise MCQ|50 Videos

  • SEMICONDUCTORS

    NIKITA PUBLICATION|Exercise MCQS|350 Videos

Similar Questions

Explore conceptually related problems

Two rigid bodies have same moment of inertia about there axes of symmetry. Then which will have more kinetic energy ?

A raw egg and a hard boiled egg are made to spin on a table with the same angular speed about the same axis. The ration of the time taken by the two to stop is

A hollow sphere and solid sphere of the same radius rotate about their diameters with the same angular velocity and angular momentum. Then the ratio of their masses is

Two bodies of masses m_1 and m_2 have the same linear momentum. What is the ratio of their kinetic energies?

Two rotating bodies have same angular momentum but their moments of inertia are I1 and I2 respectively (I_1 gt I_2) . Which body will have higher kinetic energy of rotation :-

To discs have same moment of inertia about their own axes . Their thickness are also same . If the ratio of their material densities is 16 :1 . Find the ratio of their radii .

Torques of equal magnitude are applied to hollow cylinder and a solid sphere, both having the same mass and same radius. The cylinder is free to rotate aabout its standard axis of symmetry, and the sphere is free to rotate about an axis passing through its centre. which of the two will aquire a greater angular speed after a given time ?

Two discs of the same material and thickness have radii 0.2 m and 0.6 m. Their moments of inertia about their axes will be in the ratio of

Torques of equal magnitude are applied to a thin hollow cylinder and a solid sphere, both having the same mass and radius. Both of them are free to rotate about their axis of symmetry. If alpha_(c) and alpha_(s) are the angular accelerations of the cylinder and the sphere respectively, then the ratio (alpha_(c))/(alpha_(s)) will be

NIKITA PUBLICATION-ROTATIONAL MOTION -MULTIPLE CHOICE QUESTIONS
  1. A disc of moment of inertia 3 kg m^(2) is acted upon by a constant tor...

    Text Solution

    |

  2. A solid cylinder of radius 0.5 m and mass 50 kg is rotating at 300 rpm...

    Text Solution

    |

  3. Two rigid bodies have the same angular momentum about their axes of sy...

    Text Solution

    |

  4. A disc of mass 16 kg and radius 25 cm is rotated about its axis. What ...

    Text Solution

    |

  5. If a torque of magnitude 100 Nm acting on a rigid body produces an ang...

    Text Solution

    |

  6. A disc of moment of inertia 2 kg m^(2) is acted upon by a constant tor...

    Text Solution

    |

  7. A shaft rotating at 6000 rpm is transmitting a power of 2pi kilowatt. ...

    Text Solution

    |

  8. A wheel with moment of inertia 10 kg m^(2) is rotating at (2//pi) rps ...

    Text Solution

    |

  9. A fly wheel is rotating with a kinetic energy of 200 J. A constant tor...

    Text Solution

    |

  10. An automobile egine develops 60 pi kilowatt of power when it is rotati...

    Text Solution

    |

  11. A thin rod of mass m and length 2L is made to rotate about an axis pas...

    Text Solution

    |

  12. A disc of radius 10 cm can rotate about an axis passing through its ce...

    Text Solution

    |

  13. A wheel of mass 40 kg and radius of gyrating 0.5 m comes to rest from ...

    Text Solution

    |

  14. A torque of 100 Nm acting on a wheel at rest, rotates it through 200 r...

    Text Solution

    |

  15. A disc of mass 2 kg and diameter 40 cm is free to rotate about an axis...

    Text Solution

    |

  16. A wheel of mass 40 kg and radius of gyration 0.5 m comes to rest from ...

    Text Solution

    |

  17. A motor running at a rate of 1000 rpm can supply torque of 60 Nm, then...

    Text Solution

    |

  18. If a motor running at a rate of 1200 revolutions per minute can supply...

    Text Solution

    |

  19. A rope is wound round a hollow cylinder of mass M and radius R. If the...

    Text Solution

    |

  20. A wheel of moment of inertia 2.0 xx 10^3 kgm^2 is rotating at uniform ...

    Text Solution

    |