Here's a breakdown:
* Velocity: Velocity describes both the speed and direction of an object's movement.
* Acceleration: Acceleration is the rate at which an object's velocity changes over time. It can be:
* Positive acceleration: Means the object is speeding up.
* Negative acceleration: Means the object is slowing down (also known as deceleration).
* Changing direction: Acceleration also occurs if the object changes direction, even if its speed remains constant.
Formula for Acceleration:
Acceleration (a) = (Change in Velocity (Δv)) / (Change in Time (Δt))
Units of Acceleration:
The standard unit of acceleration is meters per second squared (m/s²).
Examples:
* A car speeding up from 0 to 60 mph in 5 seconds has a positive acceleration.
* A car slowing down from 60 mph to 0 mph in 10 seconds has a negative acceleration.
* A car going around a curve at a constant speed has acceleration because its direction is changing.
