Acceleration is defined as the rate of change of velocity with respect to time.
The rate of change of velocity with respect to time is known as acceleration. According to Newton’s second law, the ultimate consequence of all forces applied to a body is its acceleration. The frequency at which a body’s velocity changes is defined by acceleration, which is a vector quantity. Acceleration can be expressed by the formula
a = Change in velocity / Time taken
The S.I unit for acceleration is meter per second square or m/s2.