# 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.

## Formulas that use Kinematic Equations

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

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

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

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

### Where:

\(\large{d}\) = displacement

\(\large{a}\) = acceleration

\(\large{t}\) = time

\(\large{v_f}\) = final velocity

\(\large{v_i}\) = initial velocity