An ideal spring is hung vertically from the ceiling. When a…
An ideal spring is hung vertically from the ceiling. When a 2.0 kg mass hangs at rest from it, the spring is extended 6.0 cm from its equilibrium length. An upward external force is then applied to the mass to compress the spring so it is 10. cm shorter than its equilibrium length. While the spring is being compressed, the work done by the spring is: