* Velocity is a measure of both speed (how fast an object is moving) and direction.
* Acceleration is the rate of change of velocity. This means that if an object's velocity is changing, it is accelerating.
Therefore, if an object has constant velocity, its speed and direction are not changing, meaning it is not accelerating.
Example:
Imagine a car driving down a straight road at a constant speed of 50 mph. The car's velocity is constant because its speed and direction aren't changing. Even though the car is moving, its acceleration is zero.
However, if the car starts to speed up or slow down, or if it changes direction (like turning a corner), its velocity would be changing, and therefore, it would have non-zero acceleration.
