Home
Class 12
PHYSICS
The torpue of force vecF=-2hati+2hatj+3h...

The torpue of force `vecF=-2hati+2hatj+3hatk` acting on a point `vecr=hati-2hatj+hatk` about origin will be :

A

`8hati+5hatj+2hatk`

B

`-8hati-5hatj-2hatk`

C

`8hati-5hatj+2hatk`

D

`-8hati+5hatj-2hatk`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RACE

    ALLEN|Exercise Basic Maths (GRAVITATION)|25 Videos
  • RACE

    ALLEN|Exercise Basic Maths (Properties of Matter & Fluid Mechanics)(Elasticity)|20 Videos
  • RACE

    ALLEN|Exercise Basic Maths (COLLISION AND CENTRE OF MASS )|12 Videos
  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos
  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Example|1 Videos

Similar Questions

Explore conceptually related problems

Find the torque of a force vecF=3hati+2hatj+hatk acting at the point vecr=8hati+2hatj+3hatk about origin

Find the torque of a force vecF=2hati+hatj+4hatk acting at the point vecr=7hati+3hatj+hatk :

Find the torque of a force vecF= -3hati+hatj+5hatk acting at the point vecr=7hati+3hatj+hatk

The torque of the force vecF=(2hati-3hatj+4hatk)N acting at the point vecr=(3hati+2hatj+3hatk)m about the origin be

What is the torque of the force vecF=(2hati+3hatj+4hatk)N acting at the point vecr=(2hati+3hatj+4hatk)m about the origin? (Note: Tortue, vectau=vecrxxvecF )

The torque of force F =(2hati-3hatj+4hatk) newton acting at the point r=(3hati+2hatj+3hatk) metre about origin is (in N-m)

Find the torque (vectau=vecrxxvecF) of a force vecF=-3hati+hatj+3hatk acting at the point vecr=7hati+3hatj+hatk

A force vecF=4hati-5hatj+3hatk N is acting on a point vecr_1=2hati+4hatj+3hatk m. The torque acting about a point vecr_2=4hati-3hatk m is

ALLEN-RACE-Basic Maths (ROTATIONAL MOTION)
  1. A particle of mass m is projected with speed u at an angle theta with ...

    Text Solution

    |

  2. A cubical block of mass m and edge a slides down a rough inclned plane...

    Text Solution

    |

  3. The torpue of force vecF=-2hati+2hatj+3hatk acting on a point vecr=hat...

    Text Solution

    |

  4. Moment of a force of megnitude 20 N acting along positive x direction ...

    Text Solution

    |

  5. A disc is rotating with angular velocity omega. A force F acts at a po...

    Text Solution

    |

  6. When a torque acting upon a system is zero, which of the following wil...

    Text Solution

    |

  7. Two men support a uniform rod of mass M and length L at its two ends. ...

    Text Solution

    |

  8. The thin rod shown below has mases M and length L. A force F acts at o...

    Text Solution

    |

  9. Two equal and opposite forces are allplied tangentially to a uniform d...

    Text Solution

    |

  10. A wheel having moment of inertia 4 kg m^(2) about its axis, rotates at...

    Text Solution

    |

  11. For equilibrium of the system, value of mass m should be :-

    Text Solution

    |

  12. Figure shows a rigid rod of length 1.0 m. It is pivoted at O. For what...

    Text Solution

    |

  13. A particle is moving along a straight line parallel to x-axis with con...

    Text Solution

    |

  14. A simple pendulum of mass m and length L is held in horizontal positio...

    Text Solution

    |

  15. A particle is rotating in circle with uniform speed as shown. The angu...

    Text Solution

    |

  16. A particle of mass m is moving with constant speed v on the line y=b i...

    Text Solution

    |

  17. A particle is moving along a straight line with increasing speed. Its ...

    Text Solution

    |

  18. If radius of earth suddenly contracts by half of its initial value kee...

    Text Solution

    |

  19. Due to global warming, ice on polar caps is likely to melt in large qu...

    Text Solution

    |

  20. A disc of mass 1 kg and radius 0.1 m is rotating with angular velocity...

    Text Solution

    |