* Acceleration is a change in velocity. Velocity includes both speed and direction.
* A rolling ball changes its direction continuously. Even if it's rolling in a straight line, its direction is constantly changing as it rotates.
* Therefore, a rolling ball undergoes a change in velocity, which means it is accelerating.
Important Note:
If the ball is rolling at a constant speed in a perfect circle, it is considered to be undergoing centripetal acceleration. This is because its direction is constantly changing, even though its speed remains the same.
