Just a little help

[strugglin-physics]

The force required to compress an imperfect horizontal spring an amount x is given by F = 153x + 12.7x3 , where x is in meters and F in newtons. If the spring is compressed 1.96 m, what speed will it give to a 3.15 kg ball held against it and then released?

I know that I will need to take the integral from x=0 to x=1.95, which gives me 341. How do I now get the velocity from this? Any suggestions?

[arildno]

What physical interpretation has "341"?
What are it's units, in particular: can it be seen as some form of energy?

[strugglin-physics]

I would believe it to be the Force as that is what the function is.

[arildno]

I would believe it to be the Force as that is what the function is.
Force*meter=Force??
Think again..

[strugglin-physics]

Oh duh that is the Work! So I use W=1/2mv^2!

Thanks for the help!