1. An object stretches a string 1.2 inches in equilibrium. Find its displacement for t > 0 if it?s initially displaced 3 inches below equilibrium and given a downward velocity of 2 ft/s.
2. A spring with natural length .5 m has length 50.5 cm with a mass of 2 gm suspended from it. The mass is initially displaced 1.5 cm below equilibrium and released with zero velocity. Find its displacement for t > 0.