* Acceleration is a vector: Acceleration has both magnitude (how much it's speeding up or slowing down) and direction.
* Constant acceleration doesn't mean constant velocity: Constant acceleration means the change in velocity is happening at a constant rate. However, the velocity itself can still change direction.
Example:
* Imagine a car moving in a circle at a constant speed. Even though the speed is constant, the car is constantly changing direction. This means it has a constant acceleration (centripetal acceleration) that is always pointing towards the center of the circle.
In Summary:
* Constant acceleration implies a change in velocity, but the change doesn't have to be in the same direction as the current velocity.
* The direction of a body can change due to a constant acceleration if that acceleration is not parallel to the body's velocity.
