Home
Class 12
PHYSICS
Let vecF be the force acitng on a parit...

Let `vecF` be the force acitng on a paritcle having positon vector `vecr and vecT` be the torque of this force about the origin. Then

A

`vecr xx vecF`

B

`vecF xx vecr`

C

Rf

D

`(vecF)/(vecr)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2019

    TARGET PUBLICATION|Exercise MCQ|45 Videos

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise Evaluation Test|17 Videos

Similar Questions

Explore conceptually related problems

Let vecF be a force acting on a particle having positon vector vecr. Let vecr be the torque of this force about the origin then

If vec F is the force acting in a particle having position vector vec r and vec tau be the torque of this force about the origin, then

If is the force acting on a particle having position vector and be the torque of this force about the origin, then-

Find the torque of forces about O ( a ) ( b )

The force 7 hat i+ 3 hat j - 5 hat k acts on a particle whose position vector is hat i- hat j + hat k . What is the torque of a given force about the origin ?

A force Fhatk acts on O, the origin of the coordinate system. The torque of this force about the point is: (1,-1) is

TARGET PUBLICATION-ROTATIONAL MOTION -MCQ
  1. Which of the following statements is correct?

    Text Solution

    |

  2. The dimensions of torque are :

    Text Solution

    |

  3. Let vecF be the force acitng on a paritcle having positon vector vecr...

    Text Solution

    |

  4. The dimensions of torque are the same as that of

    Text Solution

    |

  5. A particle of mass M and radius of gyration K is rotating with angular...

    Text Solution

    |

  6. The moment of inertia of a body is 2.5 kg m^(2). Calculate the torque ...

    Text Solution

    |

  7. If a constant torque of 500 Nm turns a wheel of moment of inertia 100 ...

    Text Solution

    |

  8. A torque of magnitude 2000 Nm acting on a body produces an angular acc...

    Text Solution

    |

  9. A fly wheel of M.I. 0.32 kg m^(2) is rotated steadily at 120 rad/s by ...

    Text Solution

    |

  10. A motor rotates at a constant speed of 25 rev/s. The power delivered b...

    Text Solution

    |

  11. A sphere cannot roll on

    Text Solution

    |

  12. Which of the following conditions is true for a rigid body rolling wit...

    Text Solution

    |

  13. A solid sphere of mass 10 kg and diameter 5 cm rolls without slipping ...

    Text Solution

    |

  14. A solid sphere at the top of an inclined plane 0.6 m high is released ...

    Text Solution

    |

  15. A thin uniform circular ring is rolling down an inclined plane of incl...

    Text Solution

    |

  16. Which of the following statements is true in case of the principle of ...

    Text Solution

    |

  17. State and prove theorem of perpendicular axes.

    Text Solution

    |

  18. State and prove theorem of parallel axes.

    Text Solution

    |

  19. M.I. of a thin uniform circular disc about one of the diameters is I. ...

    Text Solution

    |

  20. The moment of inertia of a circular loop of radius R, at a distance of...

    Text Solution

    |