[" The work done by a force is given by "$" if "],[" W = Obut If "sigma" ils an "],[" & "vec 2" (i),then both "I" and "s" are "]

The work done by a force is given by W =vecF.vecs if W=0 but F!=0 and s!=0 then both vecF and vecs are

The work done by a force is given by the dot product of force vecF and displacement vecs . If the work done is zero, then:

The work done by a force is defined by W= vec F cdot vec S cdot It is found that the work done is zero, even if vec F and vec s are not equal to zero. From this we conclude that

The work done by the force vec( F ) = 6 hat(i) + 2 hat(j) N in displacing an object from vec( r_(1)) = 3 hat(i) + 8 hat( j) to vec( r_(2)) = 5 hat( i) - 4 hat(j) m , is

The work done by the force vec( F ) = 6 hat(i) + 2 hat(j) N in displacing an object from vec( r_(1)) = 3 hat(i) + 8 hat( j) to vec( r_(2)) = 5 hat( i) - 4 hat(j) m , is

In each of the following , find the work done by a force vec F acting on a particle such that the particle is : P(-2,3,0),Q(0,1,2) , vec F = 2 hat i+ hat j- hat k .

The work done by a force vec(F)=(-6x^(3)hat(i)) N in displacing a particle from x = 4m to x = - 2m is

The work done by a force vec(F)=(-6x^(3)hat(i)) N in displacing a particle from x = 4m to x = - 2m is