Average Velocity

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

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. 

\(\large{ \bar {v} = \frac{ 1  }{ 2 }  \left( v_i + v_f   \right) }\)         

\(\large{ \bar {v} = \frac{ v_i \;+\; v_f  }{ 2 }  }\)

\(\large{ \bar {v} = \frac{ d  }{ t }    }\)

Where:

\(\large{ \bar {v}  }\) = average velocity

\(\large{ d }\) = displacement

\(\large{ v_f  }\) = final velocity

\(\large{ v_i  }\) = initial velocity

\(\large{ t }\) = time

Tags: Equations for Velocity