An object stretches a spring 6 inches in equilibrium. For all problems, use g = 32 ft/sec^2 or g = 980 cm/sec*2 or g = 384 inches/sec*2 depending on the situation. (A) Find its displacement (in feets) for t > 0 if it's initially displaced 3 inches above equilibrium and given a downward velocity of 6 inches/s y(t) (B) Find the frequency of the motion Wo (C) Find the period of the motion T (D) Find the amplitude of the motion R (E) Find the phase angle of the motion (in radian)