# Category: Aplicações de ODE de segunda ordem

## Spring Problems

A simple spring system consists of a mass ${m}$ attached to the lower end of a spring that is itself suspended vertically from a mounting. The system is in its equilibrium position when it is at rest.The mass is set in motion by one or more of the following means: displacing the mass from its equilibrium position, providing it with an initial velocity, or subjecting it to an external force ${F}{\left({t}\right)}$.