* Acceleration is the rate of change of velocity. This means acceleration describes how quickly the velocity of an object is changing.
* Constant velocity means no change in speed or direction. If the velocity isn't changing, then the rate of change of velocity (acceleration) is zero.
Think of it like this:
* Constant velocity: Driving your car at a steady 60 mph on a straight road. You're moving, but your speed and direction aren't changing.
* Acceleration: Pressing the gas pedal in your car. You're increasing your speed, which means your velocity is changing, and you're accelerating.
In summary: Acceleration and constant velocity are mutually exclusive. You can have one or the other, but not both at the same time.
