Home
Class 11
PHYSICS
A force vec(F) = 4hat(i) + 3hat(j) - 2ha...

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

A

`-hat(i) + hat(j) + hat(k)`

B

zero

C

`2hat(i) + 3hat(j)`

D

`2hat(i) + 2hat(j) - hat(k)`

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SCALARS AND VECTORS

    TARGET PUBLICATION|Exercise Competitive Thinking|64 Videos

  • REFRACTION OF LIGHT

    TARGET PUBLICATION|Exercise EVALUATION TEST|12 Videos

Similar Questions

Explore conceptually related problems

A force vec(F)=3hat(i)+2hat(j)-4hat(k) is applied at the point (1, -1, 2) . Find the moment of vec(F) about the point (2, -1, 3) .

A force vec(F) = (2 hat(i) + 3 hat(j) + 4 hat(k)) N is applied to a point having position vector vec(r) = (3 hat(i) + 2 hat(j) + hat(k)) m. Find the torque due to the force about the axis passing through origin.

Knowledge Check

  • A force vec(F) = 3 hat(i) + 2hat(j) - 4hat(k) is applied at the point (1, -1, 2) . What is the moment of the force about the point (2 , -1, 3) ?

    A
    `hat(i)+ 4hat(j) + 4hat(k)`
    B
    `2hat(i) + hat(j) + 2hat(k)`
    C
    `2hat(i) - 7hat(j) -2hat(k)`
    D
    `2hat(i) + 4hat(j) + hat(k)`

  • A force vec(F) = hat(i) + 3hat(j) + 2hat(k) acts on a particle to displace it from the point A (hat(i) + 2hat(j) - 3hat(k)) to the point B (3hat(i) - hat(j) + 5hat(k)) . The work done by the force will be

    A
    9 units
    B
    7 units
    C
    9 units
    D
    10 units

  • A force vec(F) = hat(i) + 3 hat(j) + 2 hat(k) acts on a particle to displace it from the point A (hat(i) + 2hat(j) - 3 hat(k)) to the point B(3hat(i) - hat(j)+5hat(k)) . The work done by the force will be

    A
    5 units
    B
    7 units
    C
    9 units
    D
    10 units

    • Similar Questions

    Explore conceptually related problems

    A force vec(F)=4hat(i)+hat(k) acts through point A (0, 2, 0). Find the moment vec(m) of vec(F) about the point B (4, 0, 4).

    What is the magnitude of the moment of the couple consisting of the force vec(F)=3 hat(i)+2hat(j)-hat(k) acting through the point hat(i)-hat(j)+hat(k) and -vec(F) acting through the point 2hat(i)-3hat(j)-hat(k) ?

    The line of action of a force vec(F)=(-3hat(i)+hat(j)+5hat(k)) N passes through a point (7, 3, 1) . The moment of force (vec(tau)=vec(r)xxvec(F)) about origin is given by

    A force vec(F)=3hat(i)+4 hat(j)-3hat(k) is applied at the point P, whose position vector is vec(r) = hat(2i)-2hat(j)-3hat(k) . What is the magnitude of the moment of the force about the origin ?

    A force F= 3hat(i) + 4hat(j) - 3hat(k) is applied at the point P. whose position vector is r= 2 hat(i) -2hat(j) - 3hat(k) . What is the magnitude of the moment of the force about the origin?

    Home
    Profile