11. An 8 lb weight stretches a spring 2 inches. It is attached to a dashpot with damping constant c=4 lb-sec/ft. The weight is initially displaced 3 inches above equilibrium and given a downward velocity of 4 ft/sec. Find its displacement for t > 0. -8t 6.2.11 (p. 288) y = e¯° 4 cos 8/2t – sin 8/2t ) ft 4/2

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