Answer:
Non-zero acceleration requires a change in velocity over a period of time.
Step-by-step explanation:
A measure of how rapidly an object's velocity changes is called acceleration. Since velocity is a vector quantity, it contains both a speed component and a direction component. When an object's velocity varies, either its speed, direction, or both are changing, or both are changing. The definition of acceleration is a change in velocity over time. A moving item is considered to have zero acceleration if it is travelling at a constant velocity, which indicates that both its speed and direction are remaining constant. In other words, a change in velocity over time is necessary for non-zero acceleration.