(Solved): A mass 23.5g is held against a compressed spring on a horizontal frictionless surface. The spring ...

A mass $23.5\mathrm{g}$ is held against a compressed spring on a horizontal frictionless surface. The spring has a force constant $141\mathrm{N}/\mathrm{m}$ and is compressed a distance of $2.04\mathrm{cm}$. When released the spring pushes them mass across the surface. Once the spring reaches its equilibrium position the mass separates from the spring and continues across the surface at constant velocity. Determine thal velocity of the mass when it separates from the spring (in $m/s$ ).