A particle under the influence of `vecF=3hati + 5hatj` in newton, moves from a point `vecr_1 =hati+3hatj to vecr_2=2hati+4hatj`. Find the work done by the force on the particle during the displacement.

A particle moves from a points vecr_1=hati+2hatj in metre to another point vecr_2=2hati+4hatj in metre under the action of a force vecF=2hati+3hatj in newton. Find the work done by the force on the particle in the displacement.

A particle moves from a point vecr_1=hati+3hatj in metre to another point vecr_2=2hati+4hatj in metre under the action of the force vecF =3hati+5hatj in newton. Find the work done by th force on the particle during the displacement.

A particle moves from position vecr_1=2hati+3hatj to position vecr_2=3hati+7hatj , under the action of a force (10 hati+13hatj) N Calculate the work done.

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

vecA =2 hati+3hatj and vecB=-3hati+2hatj are two vector. Find the angle between them.

A force vecF =(5hati+3hatj+2hatk)N acts on a particle , and the particle moves from the origin to a point vecr=(2hati-hatj) m. what will be the work done on the particle ?

If vecr_(1)=hati+2hatj-2hatk and vecr_(2)=3hatj-4hatk , then the angle between vecr_(1) and vecr_(2) is -

The torque of a force vecF = 6hati acting at a point vecr= 4hatj about origin will be