# Kinematic Equations

Kinematics formulas are about objects in motion and their interrelationship. These formulas are only accurate if acceleration is constant during a time interval and it assumes all variables are in the same direction.

### Kinematic Equations FORMULA

\(d = v_i \; t + \frac {1} {2} \; a \; t^2\)

\(\frac {v_i \;+\; v_f} {2} = \frac {d} {t}\)

\(a = \frac {v_f \;-\; v_i} {t} \)

\({v_f}^2 = {v_i}^2 + 2 \; a \; d \)

Where:

\(d\) = displacement

\(a\) = acceleration

\(t\) = time

\(v_f\) = final velocity

\(v_i\) = initial velocity