Home
Class 12
MATHS
A force given by and 3veci+2vecj-4veck ...

A force given by and `3veci+2vecj-4veck ` is applied at the point (1,-1,2). Find the moment of the force about the point (2,-1,3).

Text Solution

Verified by Experts

The correct Answer is:
` 2veci-7vecj-2veck `
Promotional Banner

Topper's Solved these Questions

  • APPLICATIONS OF VECTOR ALGEBRA

    FULL MARKS|Exercise EXERCISE-6.10(M.C.Q)|25 Videos

  • APPLICATIONS OF MATRICES AND DETERMINANTS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED|56 Videos

  • COMPLEX NUMBERS

    FULL MARKS|Exercise EXERCISE - 2.9|25 Videos

Similar Questions

Explore conceptually related problems

Find the moment about (1,-1,-1) of the force 3hati+4hatj-5hatk acting at (1,0,-2)

Find the moment about (1,-1,-1) of the force 3hati+4hatj-5hatk acting at (1,0,-2)

A force of (2hati+3hatj+5hatk)N is is applied at a point whose position vector is (7hati+4hatj-2hatk)m . Find the torque of force about the origin.

A rigid body is spinning about a fixed point (3,-2,-1) with an angular velocity of 4 rad/s, the axis of rotation being in the direction of (1,2,-2). Find the velocity of the particle at point (4,1,1).

A particle acted on by constant forces 4veci+vecj-3veck and 3veci+vecj-veck is displaced from the point veci+2vecj+3veck to the point 5veci+4vecj+veck. Find the total work done by the forces

A force of vecF = (4hati-3hatj+5hatk)N is applied at a point whose position vector is vec r = (7hati+4hatj-2hatk)m . Find the torque of force about the origin.

A particle acted on forces vec F_(1)= 3 hati -hat j+ 3 hat k and vecF_(2)= 2 hat i + 3 hat j - 4 hatk , is displaced from the point (3, -2, -1) to the point (1, 5,-2) . Find the total work done by the forces.

FULL MARKS-APPLICATIONS OF VECTOR ALGEBRA-Additional Questions Solved
  1. The work done by the force vecF=ahati+hatj+hatk in moving the point...

    Text Solution

    |

  2. If the position vectors of three points A, B and Care respectively v...

    Text Solution

    |

  3. A force given by and 3veci+2vecj-4veck is applied at the point (1,-1...

    Text Solution

    |

  4. Show that the area of a parallelogram having diagonals 3veci+vecj-2v...

    Text Solution

    |

  5. If the edges  veca=-3veci+7vecj+5veck , vecb=-5veci+7vecj-3veck ,...

    Text Solution

    |

  6. If vecx.veca=0 , vecx.vecb=0 , vecx.vecc=0 and vecxnevec0 ...

    Text Solution

    |

  7. The volume of the parallelepiped whose edges are represented by -12 ha...

    Text Solution

    |

  8. Prove that |vecavecbvecc|=abc   if and only if veca , vecb , ...

    Text Solution

    |

  9. Show that the points (1, 3, 1), (1, 1,-1), (-1, 1, 1), (2,2, -1) are l...

    Text Solution

    |

  10. If veca=2veci+3vecj-5veck , vecb=-veci-vecj+2veck and vecc=4vec...

    Text Solution

    |

  11. If veca =3veci+2vecj-4veck , vecb =5veci-3vecj+6veck , vecc =5ve...

    Text Solution

    |

  12. If veca =2veci+3vecj-veck , vecb =2veci+5veck , vecc =vecj-3veck...

    Text Solution

    |

  13. Find the vector and cartesian equations of the straight line passing t...

    Text Solution

    |

  14. Find the vector and cartesian equations of the straight line passing t...

    Text Solution

    |

  15. Find the angle between the following lines vecr=3veci+2vecj-veck+t(v...

    Text Solution

    |

  16. Find the angle between the following lines (x-1)/(2)=(y+1)/(3)=(z-4)...

    Text Solution

    |

  17. Find the distance between the parallel lines vecr=(hati-hatj)+t(2hati-...

    Text Solution

    |

  18. Show that the lines vecr=(hati-hatj)+t(2hati+hatk) and vecr=(2hati-hat...

    Text Solution

    |

  19. Show that the lines (x-1)/(3)=(y-1)/(-1)=(z+1)/(0) and (x-4)/(2)=...

    Text Solution

    |

  20. find the shortest distance between the skew lines. vecr=(veci-vecj)+...

    Text Solution

    |