1. Nov 26, 2006

### ganon00

was wondering which formula I would use to solve this equation....

a car traveling in a straight line has a velocity of +5.0m/s at some instant.
After 4.0seconds, it velocity is +8.0m/s. What is it average acceleration in this time interval?

2. Nov 27, 2006

### Hootenanny

Staff Emeritus
$$\bar{a} = \frac{\Delta v}{\Delta t}$$