Here's a breakdown:
* Velocity: A measure of how fast an object is moving and in what direction. It's a combination of speed and direction.
* Acceleration: The change in velocity over a period of time.
Key Points:
* Positive acceleration: Means the object is speeding up.
* Negative acceleration: Means the object is slowing down (also called deceleration).
* Zero acceleration: Means the object is moving at a constant speed in a constant direction (no change in velocity).
Units of Acceleration:
Acceleration is typically measured in meters per second squared (m/s²). This means that the velocity of an object is changing by a certain number of meters per second, every second.
Examples:
* A car accelerating from rest to 60 miles per hour in 10 seconds has a positive acceleration.
* A car braking to a stop has negative acceleration.
* A car driving at a constant speed on a straight road has zero acceleration.
Let me know if you'd like more details or examples!
