question_answer 38)

                  Motion of a ball bearing inside a smooth curved bowl, when released from a point slightly above the lower point is                 (a) simple harmonic motion                 (b) non-periodic motion.                 (c) periodic motion                 (d) periodic but not S.H.M.

Answer:

                  (a, c) This case in similar to that of a simple pendulum. If R is the radius of the bowl, then time period of oscillation of the ball bearing inside the smooth bowl in given by \[T=2\pi \sqrt{R/g}\].