How does acceleration affect velocity?

Can you explain how acceleration affects velocity?

Sure! Acceleration is the rate of change of velocity. When an object accelerates, its velocity increases or decreases depending on the direction of the acceleration.

So, if a car accelerates, its speed increases?

Exactly! If a car accelerates in the direction it's moving, its speed increases. If it decelerates, its speed decreases.

What happens if the acceleration is negative?

Negative acceleration, or deceleration, means the object is slowing down. For example, if a car applies brakes, it experiences negative acceleration.

Can you give me a real-world example of this?

Sure! When a roller coaster goes down a hill, it accelerates, increasing its velocity. When it goes up, it decelerates, reducing its velocity.