The
Simple Harmonic Movement is a periodic movement in which the position
varies according to a sinusoidal (sine or cosine) equation.
The
velocity of the body continually changes, being maximum at the centre
of the trajectory and nil at the limits, where the body changes the
direction of the movement.
The S.H.M.
is a non-uniformly accelerated movement. Its acceleration
is proportional to displacement and in the opposite direction.
It shows its maximum value at the limits and its minimum value in the
centre.
We can
imagine an S.H.M. as the projection of a Uniform Circular Movement. The
phase indicates the position of the body at the start when time equals
zero.
