Q.1 What is simple-harmonic motion? What are the necessary conditions for a body to execute simple harmonic motion?

Ans. Simple Harmonic Motion:

The special kind of vibratory motion of a body, whose acceleration is directly proportional to its displacement from mean – equilibrium position, is called the simple harmonic motion.

Conditions for SHM:

  1. Acceleration is directly proportional to its displacement.
  2. Acceleration is directed towards the mean position.