a = (v - u) / t
Where:
* a is acceleration
* v is final velocity
* u is initial velocity
* t is time taken
Explanation:
This equation represents the change in velocity (v - u) divided by the time taken for that change to occur. Acceleration is essentially the rate of change of velocity.
Other equations you might use:
* a = F / m (acceleration equals force divided by mass) - This is derived from Newton's second law of motion.
* a = g (acceleration due to gravity) - This is a constant value of approximately 9.8 m/s² on Earth.
The equation you use will depend on the specific information you have available.