A force `vecF=2hati+hatj-hatk` acts at a point A whose position vectro is `2hati-hatj.` If the point aplication of `vecF` moves from point A to point B, with position vector `2hati+hatj`, find the workdown by `vecF`

A force vecF=2hati +hatj-hatk acts at point A whose position vector is 2hati-hatj. Find the moment of force vecF about the origin.

Two forces -hati+2hatj-hatk and 2hati-5hatj+6hatk act on a particfle whose position vector is 4hati-3hatj+2hatk and displace it to another point whose positon vector is 6hati+hatj-3hatk . Find the total work done by the force.

A force vecF=hat3 +4 hatj is applied to a point whose position vector is vecr=hatI +2hatj . Find the moment N and the arm l of the force F relative to the origin.

Forces 2hati+hatj, 2hati-3hatj+6hatk and -hati+2hatj-hatk act at a point P, with position vector 4hati-3hatj-hatk . Find the vector moment of the resultant of these forces about thepoint Q whose position vector is 6hati+hatj=3hatk

What is the vector equation of line through the points with position vectors hati+hatj+2hatk and 2hati+hatk .

Find the torque of a force F=a(hati+2hatj+3hatk) N about a point O. The position vector of point of application of force about O is r=(2hati+3hatj-hatk) m .

Find the torque of a force vecF=3hati+4hatj+5hatk N about a point O , whose position vector is vecr = hati+hatj+hatk m .

If vecF=2hati+3hatj-hatk and vecr=hati-hatj+6hatk find vecrxxvecF

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

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