Consider a rocking chair oscillating back and forth, executing simple harmonic motion. The equilibrium position is the midpoint of the oscillation, where the net force is balanced. For instance, a ball undergoing simple harmonic motion inside a ring oscillates around the equilibrium position due to the restoring force. When the ball comes to rest, the equilibrium position is termed the fixed point. At a stable equilibrium point, the restoring force is directed towards the fixed point, and the ball, if displaced, returns to its original equilibrium position. Now, if the ball is kept over the ring, it rolls off the ring when displaced from the equilibrium position. This condition is termed as an unstable equilibrium point, where the force is directed away from the fixed point.