There is no change in acceleration without change in velocity.
The rate of change of the non-uniform velocity of a body with time is called its acceleration. If the velocity of the body is constant that is, the body travels the same distance for every per unit time, then there will be no change in velocity. So, the velocity will be uniform velocity. Otherwise, the velocity will be non-uniform. As, acceleration depends on velocity and it has meaning only when the velocity is non-uniform, so there is no change in acceleration without a change in velocity.
