1. Acceleration from change in velocity and time:

* a = (v - u) / t

where:

* a is acceleration

* v is final velocity

* u is initial velocity

* t is time taken

2. Acceleration from force and mass:

* a = F / m

where:

* a is acceleration

* F is the net force acting on the object

* m is the mass of the object

Let me know if you'd like more details or examples of how to use these formulas!