Question

What are the condition when the work done by the body is zero?​

Answer 1

Answer:

Two conditions when the work done is zero are: (i) When there is no displacement (S=0) and, (ii) When the displacement is nonual to the direction of the force (θ=90o).

Answer 2

:)Force and displacement should be perpendicular to each other

OR

:)Force or displacement any one should be zero or both zero