question_answer

Can a motion be oscillatory but not simple harmonic? If your answer is yes, give an example and if not, explain why.

Answer:

                Yes; when a ball is dropped from a height on a perfectly elastic surface, the motion is oscillatory but not simple harmonic as restoring force \[F=mg=\]constant and not\[F\propto -x,\]which is an essential condition for S.H.M.