An engine work 54,000J work by exerting a force of 6000N on it. What is the displacement of the force .
A force F acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of force.
(a) Write the expression for the work done by the force.
(b) What should be the angle between the force and displacement to get (i) zero, (ii) maximum, work?