Solving Vector Math: vi, vf, t, a

[ahmed1237]

Homework Statement

vi=35m/s (s 10 degrees w)
vf=30m/s (n 30 degrees w)
t=5.0x10^-3s
a=?

Do I add these vectors to get a resultant vector or do I subtract?

Homework Equations

The Attempt at a Solution

 

[Legaldose]

Try drawing the vectors on a coordinate plane, it will become obvious what to do after that.

 

[SteamKing]

You have not submitted a complete problem statement. We don't know what you are supposed to do with that information.