Home
Class 11
PHYSICS
A body is uniformly rotating bout an axi...

A body is uniformly rotating bout an axis fixed in an inertial frame of reference. Let `vecA` be a unit vector along the axis of rotation and `vecB` be the unit vector along the resultant force on a particle P of te ody away from the axis. The value of `vecA.vecB` is

A

1

B

`-1`

C

0

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RIGID BODIES AND ROTATIONAL MOTION

    PHYSICS GALAXY - ASHISH ARORA|Exercise paragraph|24 Videos

  • RIGID BODIES AND ROTATIONAL MOTION

    PHYSICS GALAXY - ASHISH ARORA|Exercise MCQ|16 Videos

  • RIGID BODIES AND ROTATIONAL MOTION

    PHYSICS GALAXY - ASHISH ARORA|Exercise Conceptual MCQs Single Option Correct|39 Videos

  • NEWTONS LAWS OF MOTION

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problem|81 Videos

  • WORK, ENERGY AND POWER

    PHYSICS GALAXY - ASHISH ARORA|Exercise unsolved|1 Videos

Similar Questions

Explore conceptually related problems

Let vecA be a unit vecrtor along the axis of rotation of a purely rotating body and vecB be a unit vector along the velocity of a particle P of the body away from the axis. The value of vecA.vecB is

A body is rotating uniformly about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on the axis is

A body is rotating uniformly about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on axis is

A body is rotating anonuniformly abut a vertical axis fixed in an inertial frame. The resultant force on a particle of the body of thebody not on the axis is

If vecA+veB is a unit vector along x-axis and vecA=hati-hatj+hatk , then what is vecB ?

If veca and vecb are two unit vectors and theta is the angle between them, then the unit vector along the angular bisector of veca and vecb will be given by

The direction of following vectors is along the line of axis of rotation

If vecA+vecB is a unit vector along x-axis and vecA = hati-hatj+hatk , then what is vecB ?

Let vecr be a unit vector satisfying vecr xx veca = vecb, " where " |veca|= sqrt3 and |vecb| = sqrt2

PHYSICS GALAXY - ASHISH ARORA-RIGID BODIES AND ROTATIONAL MOTION-Numerical MCQs Single Option Corrrect
  1. A ladder of length 5 m is placed against a smooth wall as shown in fig...

    Text Solution

    |

  2. Two rings of same radius and mass are placed such that their centres a...

    Text Solution

    |

  3. A body is uniformly rotating bout an axis fixed in an inertial frame o...

    Text Solution

    |

  4. The moment of inertia of a uniform semicircularwire of mass M and radi...

    Text Solution

    |

  5. A uniform rod of mass m and length l makes a constant angle theta with...

    Text Solution

    |

  6. A particle of mass m and charge Q is attached to a string of length l...

    Text Solution

    |

  7. A particle is attached by a light string of length 3 a to a fixed poin...

    Text Solution

    |

  8. A uniform circular disc placed on a horizontal rough surface has initi...

    Text Solution

    |

  9. A cubical block of mass M and edge a slides down a rougg inclined plan...

    Text Solution

    |

  10. A hoop ofradius r weights m kg. It rolls-without sliding along a horiz...

    Text Solution

    |

  11. A uniform rod AB of length l rotating with an angular velocity omega w...

    Text Solution

    |

  12. A homogeneous cylinder of mass Mand radius r is pulled on a horizontal...

    Text Solution

    |

  13. A disc of mass m(0) rotates freely about a fixed horizontal axis throu...

    Text Solution

    |

  14. A particle of mass m is projected with a velocity mu at an angle of th...

    Text Solution

    |

  15. A ody is in pure rotation. The linear speed v of a particle, the dista...

    Text Solution

    |

  16. One end of a uniform rod of mas m and length l is clamped. The rod lie...

    Text Solution

    |

  17. A man pushes a cylindrical drum through a board of length l as shownin...

    Text Solution

    |

  18. A smooth uniform rod of length L and mass M has two identical beads of...

    Text Solution

    |

  19. A sphere and circular disc of same mass and radius are allowed to roll...

    Text Solution

    |

  20. A uniform disc of mass M =2.50 kg and radius R = 0.20 m is mounted on ...

    Text Solution

    |