Average Velocity

v_{a v g} = \frac{x _{f} - x _{i}}{t _{f} - t _{i}}

Average velocity is the total displacement divided by total time elapsed.

Variables

v_avg

Average velocity

Mean velocity over interval

m/s

x_f

Final position

Position at time t_f

m

x_i

Initial position

Position at time t_i

m

t_f

Final time

End of time interval

s

t_i

Initial time

Start of time interval

s

Derivation

By definition, average velocity is Δx/Δt = (x_f - x_i)/(t_f - t_i).

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