Question
Which of following is example of (a) simple harmonic motion (b) periodic but not simple harmonic motion and (c) non-periodic motion:
(i) Planet revolving around the sun.
(ii) A body dropped from a certain height and colliding elastically on the earth.
(iii)Motion of ball inside the smooth concave bowl.
(iv) Rotation of the earth about its own axis.
(v) Motion of body under force F = ky.
(vi) Motion of simple pendulum in free falling lift.
Solution
(i) Periodic but not simple harmonic.
(ii) Periodic but not simple harmonic.
(iii) Simple harmonic motion.
(iv) Periodic but not simple harmonic.
(v) Non-periodic.
(vi) Non-periodic.
