Show that for a particle executing SHM, velocity and dispacement have a phase difference of `pi//2`.

Explanation

To show that for a particle executing Simple Harmonic Motion (SHM), the velocity and displacement have a phase difference of \( \frac{\pi}{2} \), we can follow these steps:

### Step 1: Write the displacement equation for SHM
The displacement \( x \) of a particle in SHM can be expressed as:
\[ x(t) = a \sin(\omega t + \phi) \]
where:
...