Acceleration indicates the change in velocity per unit of time. The symbol for acceleration is a. The SI unit for acceleration is metres per second squared (m/s2 or mΒ·s-2).
$$a = \frac{\Delta v}{\Delta t}$$
where,
Ξvβ change in velocity
Ξtβ time during which the change in velocity occurs.
Acceleration is the change in velocity per unit time.
Acceleration is the change in velocity divided by the time interval.