Question

Determine the amount of work done when an object is displaced at an angle of 30° with respect to the direction of the applied force

Answer 1

let work=w, force=f, displacement=s, and angle between force and displacement = theta
we have, w=f*s*cos theta,
w=f*s*cos 30°
w=f*s*(√3/2)
therefore, work done=(√3/2)*force*displacement

Answer 2

W=F×S×cos( theta)
=F×S×square root of 3/2.