Changes

When '''Equilibrium forces''' are a pair of equal [[magnitude]] [[force]]s acting on opposite sides of an [[object]] in opposite directions. ===About Equilibrium Forces===: '''Equilibrium forces''' can act to stretch or squash an [[elasticobject]] .: When an [[object]] is acted on by two equal, but opposing [[force]]s, the object is in '''Equilibriumequilibrium'''.: [[Elastic]] [[object]]s like [[Coil Spring|springs]] need two opposing [[force]]s to change length. Once the [[force]]s have been applied the [[Coil Spring|spring]] will stay at this new length until the [[force]]s are removed.