[" A force "vec F=(3that 1+5hat j)N],[" acts on a body due to which its position varies as "vec s=],[(2t^(2)hat imath-5hat j)],[" Work done by this force in first two seconds is: "]

A force vec F = (3t hat i + 5 hat j)N acts on a body due to which its position varies as vec S =(2t^2 hat i - 5 hat j) . Work done by this force in initial 2s is:

A force F=(3thati + 5hatj)N acts on a body due to which its displacement varies as S=(2t^(2)hat-5hatj)m . Work done by these force in 2 s is .

A force F=(3thati + 5hatj)N acts on a body due to which its displacement varies as S=(2t^(2)hat-5hatj)m . Work done by these force in 2 s is .

If vec F =2 hat i + 3hat j +4hat k acts on a body and displaces it by vec S =3 hat i + 2hat j + 5 hat k , then the work done by the force is

A force vec(F)=5 hat(i)+2hat(j)-5hat(k) acts on a particle whose position vector is vec(r)=hat(i)-2hat(j)+hat(k) . What is the torque about the origin ?

A force vec(F)=2hat(i)-3hat(j)+7hat(k) (N) acts on a particle which undergoes a displacement vec(r )=7hat(j)+3hat(j)-2hat(k)(m) . Calculate the work done by the force.

A force vec(F)=2hat(i)-3hat(j)+7hat(k) (N) acts on a particle which undergoes a displacement vec(r )=7hat(j)+3hat(j)-2hat(k)(m) . Calculate the work done by the force.

A force vec(F) = (40 hat (i) + 10 hat(j)) N acts on body of mass 5 kg. If the body starts from rest, its position vector vec(r) at time t = 10 s, will be

A force vecF=hat i+5 hat j+7 hat k acts on a particle and displaces it throught vec s=6 hat I +9 hat k . Calculate the work done if the force is in newton and displacement in metre. (ii) Find the work done by force vec F=2hat i-3 hat j+hatk when its point of application moves from the point A(1,2,-3) to the point B (2,0, -5).