# Spring Force

by volraithe
Tags: force, physics, spring
A very simple method for this problem would be to use the fact that the potential energy of the spring is $$\frac{{kx^2 }}{2}$$. We know that upon release, the spring is going to transfer all of it's energy into the mass. We of course know the energy of a mass as $$\frac{{mv^2 }}{2}$$. Equating both sides allows you to solve for the velocity of the mass.