How Do You Calculate Average Velocity with Acceleration and Initial Speed?

[adhoward24]

1. Homework Statement

Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s


2. Homework Equations

Vavg=deltaD/deltaT

3. The Attempt at a Solution

I'm unsure of how to go about this even though it seems its an easy question. Is there enough information to even solve it? Wouldn't i need the amount of time that it travels forward? Thanks for any help

 

[shallgren]

The equation you listed isn't all you need. What other motion equations do you know that might help you find delta d?

 

[ercerc]

Delta d=(V2^2-V1^2)/2a?

Not sure if I am doing this right but
Delta d=(1.0^2-0.0^2)/2(0.8)
= 0.625m

I need some help is this correct?