* Positive Direction: This means the object's velocity is positive.
* Slowing Down: This means the object's velocity is decreasing.
* Acceleration: Acceleration is the rate of change of velocity. To decrease a positive velocity, the acceleration needs to act in the opposite direction, hence negative.
Think of it like this:
* Imagine you are driving a car forward (positive direction). To slow down, you press the brake, which acts in the opposite direction of your motion. This braking force is the negative acceleration.
