* Velocity: Describes the rate and direction of an object's motion.

* Acceleration: Describes the rate of change of velocity.

Scenario:

Imagine a car moving to the right (positive velocity). If the car is applying its brakes, it's slowing down. This means its velocity is decreasing, but it's still moving to the right. The acceleration due to the brakes is acting in the opposite direction (to the left) to slow the car down.

Key Points:

* Antiparallel: Means pointing in opposite directions.

* Slowing down: The magnitude of velocity decreases.

* Acceleration opposite to velocity: This means acceleration is working to reduce the speed, not increase it.

Example:

* A ball thrown vertically upwards. As it goes up, its velocity is upward, but gravity's acceleration acts downward. This causes the ball to slow down until it momentarily stops at its highest point.