Here's why:
* Velocity includes both speed (how fast something is moving) and direction.
* Acceleration is the rate of change of velocity.
Examples:
* Speeding up: If a car is going 20 mph and increases to 30 mph, it's accelerating.
* Slowing down: If a car is going 30 mph and decreases to 20 mph, it's also accelerating (but in the opposite direction of its initial velocity).
* Changing direction: A car turning a corner at a constant speed is still accelerating because its direction is changing.
In summary: Acceleration isn't just about getting faster; it's about any change in how fast or in what direction something is moving.
