a = (v - u) / t

Where:

* a is acceleration

* v is final velocity

* u is initial velocity

* t is time

Explanation:

Acceleration is the rate of change of velocity over time. It tells us how quickly an object's velocity is changing.

* (v - u) represents the change in velocity.

* t represents the time taken for that change to occur.

Units:

* Acceleration is typically measured in meters per second squared (m/s²).

* Velocity is measured in meters per second (m/s).

* Time is measured in seconds (s).

Important Notes:

* Acceleration can be positive or negative.

* Positive acceleration indicates an increase in velocity.

* Negative acceleration indicates a decrease in velocity (also known as deceleration or retardation).

* If an object is moving at a constant velocity, its acceleration is zero.