Home
Class 11
PHYSICS
The moment of the force, vec F = 4 hat i...

The moment of the force, `vec F = 4 hat i + 5 hat j - 6 hat k` at (2,0,-3), about the point (2,-2,-2) is given by

A

`-8hat(i)-4hat(j)-7hat(k)`

B

`-4hat(i)-hat(j)-8hat(k)`

C

`-7hat(i)-8hat(j)-4hat(k)`

D

`-7hat(i)-4hat(j)-8hat(k)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos
  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Critical Thinking|37 Videos
  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos
  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise EXERCISE|147 Videos

Similar Questions

Explore conceptually related problems

A force vec(F) = 4hat(i) + 3hat(j) - 2hat(k) is passing through the origin. Its moment about point (1,1,0) is

Show that vectors vec a = 2 hat i + 5 hat j + 6 hat k and vec b = hat i + frac(5)(2) hat j + 3 hat k are parallel

vec A = 2 hat i + 3 hat j + 4 hat k and vec B = hat i - 2 hat j + 3 hat k find vec A . vec B

A force vec F = prop hat i + 3 hat j + 6 hat k is acting at a point vec r = 2 hat i - 6 hat j - 12 hat k . The value of prop for which angular momentum about origin is conserved is.

If vec A = 2 hat i + 2 hat j - hat k and vec B = hat i + 4 hat j- 3 hat k then find (a) vec A * vec B (b) vec A xx vec B

bar A = 2 hat i + 3 hat j and bar b = 3 hat i + 5 hat j Then bar a xx bar b is

The velocity of a particle of mass m is vec(v) = 5 hat(i) + 4 hat(j) + 6 hat(k)" " "when at" " " vec(r) = - 2 hat(i) + 4 hat (j) + 6 hat(k). The angular momentum of the particle about the origin is

Consider a particle on which constant forces vec(F) = hat(i) + 2hat(j) + 3hat(k)" " "N" and vec(F_(2)) = 4hat(i) - 5hat(j) - 2hat(k)" " "N" act together resulting in a displacement from position vec(r_(1)) = 20hat(i) + 15 hat(j) " " "cm to" " "vec(r_(2)) = 7hat(k)" "cm" . The total work done on the particle is

What is the area of the triangle formed by sides vec(A) = 2hat(i) - 3hat(j) + 4hat(k) and vec(B) = hat(i) - 2hat(k) ?

A particle acted upon by constant forces 5hat(i) + hat(j) - 2hat(k) and 2hat(i) + hat(j) - 2hat(k) is displaced from the point 2hat(i) + 2hat(j) - 4hat(k)" " "to point" " " 6hat(i) + 4hat(j) - 2hat(k). The total work done by the forces in SI unit is

TARGET PUBLICATION-SCALARS AND VECTORS-Competitive Thinking
  1. A vector vec(A) points verically upward and vec(B) points towards nort...

    Text Solution

    |

  2. Which of the following relation is not correct?

    Text Solution

    |

  3. What is the value of linear velocity if vecomega = 3 hati - 4hatj + ha...

    Text Solution

    |

  4. If vec(A)xxvec(B)=vec(B)xxvec(A), then the angle between vec(A) and ve...

    Text Solution

    |

  5. The moment of the force, vec F = 4 hat i + 5 hat j - 6 hat k at (2,0,-...

    Text Solution

    |

  6. A force vec F = prop hat i + 3 hat j + 6 hat k is acting at a point ve...

    Text Solution

    |

  7. Two particles A and B are moving as shown in the figure. Their total a...

    Text Solution

    |

  8. The velocity of a particle of mass m is vec(v) = 5 hat(i) + 4 hat(j) +...

    Text Solution

    |

  9. Two adjacent sides of a parallelogram are respectively by the two vect...

    Text Solution

    |

  10. Three vector vec(A),vec(B), vec(C ) satisfy the relation vec(A)*vec(B)...

    Text Solution

    |

  11. The component of a vector r along X-axis will have maximum value if

    Text Solution

    |

  12. If |vecA xx vecB| = sqrt3 vecA *vecB, then the value of |vecA + vecB| ...

    Text Solution

    |

  13. Sum of magitude of two fores is 25 N. The resultant of these forces is...

    Text Solution

    |

  14. Consider a particle on which constant forces vec(F) = hat(i) + 2hat(j)...

    Text Solution

    |

  15. A particle moves from a point (-2hat(i) + 5hat(j)) " to" " " (4hat(j) ...

    Text Solution

    |

  16. A force vec((F)) = - K(yhat(i) + x hat(j)) (where K is a positive cons...

    Text Solution

    |

  17. The vector sum of two forces is perpendicular to their vector differen...

    Text Solution

    |

  18. If vec(A)andvec(B) are two vectors then (vec(A)+vec(B))xx(vec(A)-vec(B...

    Text Solution

    |

  19. The angle between the vector vec(A) and vec(B) is theta. Find the valu...

    Text Solution

    |

  20. If the position vector of a body performing rectilinear motion is give...

    Text Solution

    |