A body having uniform velocity has zero acceleration. why?

Acceleration is defined as the change of velocity with respect to time. The formula for acceleration is:

a = (Vf-Vi) / t

where:

a = acceleration

Vf = final velocity

Vi = initial velocity

t = time in seconds (s)

At uniform velocity, where there is no change in speed and direction, the final velocity (Vf) is equal to (Vi).

If Vf = Vi, the rate of change in velocity (Vf - Vi) is zero (0).

a = (Vf - Vi) / t

a = 0 / t

a = 0