Question

Which of the following is a simple harmonic motion?(a) Particle moving through a string fixed at both ends.(b) Wave moving through a string fixed at both ends.(c) Earth spinning about its axis.(d) Ball bouncing between two rigid vertical walls.

Answer 1

In mechanics and physics, simple harmonic motion is a special type of periodic motion or oscillation motion where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement.

c)

i hope so

Answer 2

I think the answer is option (c)