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 formulas

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

Where:

Units	English	Metric
\(\large{ s }\) = displacement	\(\large{ft}\)	\(\large{m}\)
\(\large{a}\) = acceleration	\(\large{\frac{ft}{sec^2}}\)	\(\large{\frac{m}{s^2}}\)
\(\large{t}\) = time	\(\large{sec}\)	\(\large{s}\)
\(\large{v_f}\) = final velocity	\(\large{\frac{ft}{sec}}\)	\(\large{\frac{m}{s}}\)
\(\large{v_i}\) = initial velocity	\(\large{\frac{ft}{sec}}\)	\(\large{\frac{m}{s}}\)