At positlon, t = 0,

The given function is

Differentiating equation (1) with respect to t, we get,

Velocity,

On Squaring and adding equations (2) and (4), we get,

Dividing equation (4) by equation (2),

Squaring and adding equations(5) and (6), we get:

Dividing equation (5) by equation (6), we get:

As a result,