Question

Q.5. A body of mass 5 kg is placed at the
origin and can only move along the X-axis.
A force of 10 N acts on it in a direction
making an angle of 60° with the X-axis. Il
it is displaced along the X-axis by 4 m, the
work done by the force is:
(a) 80 )
(6) 40 )
(c) 60 )
(d) 20
​

Answer 1

W = F.s

W = Fscosθ. Where θ is the angle between force vector and displacement vector

W = 10 * 4 * cos60

W =20N