Average Velocity

Average velocity, abbreviated as \(\bar {v}\) or \(v_a\), also called constant acceleration, is the average of any given velocities where the acceleration is constant.  The calculation for average velocity with zero accleration is shown below. 

 

Average velocity formula
\( \bar {v} \;=\; \frac{ 1 }{ 2 } \; ( v_i + v_f )  \)     (Average Velocity) \( v_i \;=\; 2 \; \bar {v} - v_f  \) \( v_f \;=\; 2 \; \bar {v} - v_i  \)
Symbol	English	Metric
\( \bar {v}  \) = Average Velocity	\(ft \;/\; sec\)	\(m \;/\; s\)
\( v_i  \) = Initial Velocity	\(ft \;/\; sec\)	\(m \;/\; s\)
\( v_f  \) = Final Velocity	\(ft \;/\; sec\)	\(m \;/\; s\)