* Acceleration is the rate of change of velocity. This means acceleration tells you how quickly the velocity is increasing or decreasing.
* To find acceleration, you need information about how velocity changes over time. You need to know the velocity at two different points in time to determine how it changed.
Here's what you need to calculate acceleration:
* Initial velocity (v₁): The velocity at the beginning of the time interval.
* Final velocity (v₂): The velocity at the end of the time interval.
* Time interval (Δt): The difference in time between the two velocity measurements.
Formula for Acceleration:
* Acceleration (a) = (Final velocity (v₂) - Initial velocity (v₁)) / Time interval (Δt)
Example:
Let's say a car's velocity increases from 10 m/s to 20 m/s in 5 seconds.
* v₁ = 10 m/s
* v₂ = 20 m/s
* Δt = 5 seconds
Acceleration = (20 m/s - 10 m/s) / 5 s = 2 m/s²
Important Note: If the velocity is constant, then the acceleration is zero.