Question

17) 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. (i) Write the expression for the work done by the force.

(ii) What should be the angle between the force and displacement so that the work done is (a) zero and (b)maximum.​

Answer 1

for the question u asked, the expression for force is W=F×S Cos theta. The force to be zero the value of theta to be 90 degree and for maximum it should be zero