# How to get average velocity from velocity vs. time graph(acceleration not constant)

1. Aug 7, 2011

### assuredlonewo

How does one get the average velocity from a velocity vs. time graph, when acceleration is not constant.

2. Aug 7, 2011

### Studiot

Re: How to get average velocity from velocity vs. time graph(acceleration not constan

If you have a velocity -time graph the area under it is the distance travelled between t1 and t2

The average velocity is
$${\rm{average velocity = }}\frac{{{\rm{total distance}}}}{{{\rm{total time}}}}{\rm{ = }}\frac{{{\rm{Area under graph between }}{{\rm{t}}_{\rm{1}}}{\rm{and }}{{\rm{t}}_{\rm{2}}}}}{{{{\rm{t}}_{\rm{2}}}{\rm{ - }}{{\rm{t}}_{\rm{1}}}}}$$