Finding out the Final Velocity from the rate of acceleration and Distance Traveled

[JustinSampson]

Hey,
I'm workig on my flash game again and I was wondering how you can find out what an objects final velocity would be if all you know is it's rate of acceleration and the distance it traveled?

So say an object was stopped then accelerated at 2 m/s^2 until it traveled 20m how could I find out the velocity of the object when it reaches 20m?

All the equations I can find end up having 2 unknowns using the data I have. Should be easy for you guys though!

Thanks again,
Justin S.

 

[Haircut]

Asuming you start at zero:

distance = 0.5 * acceleration * (time^2)

20 = time ^ 2

time = sqrt(20)

final velocity = acceleration * time
final velocity = 2 * sqrt(20)

 

[JustinSampson]

Ok, I think I got ya'. So it would work out to having a time of 4.47s and a final velocity of 8.94m/s?