An object stretches a spring 6 inches in equilibrium. For all problems, use ft/sec^2 or cm/sec^2 or inches/sec^2 depending on the situation.
(A) Find its displacement (in feets) for if it's initially displaced 3 inches above equilibrium and given a downward velocity of 6 inches/s
(B) Find the frequency of the motion
(C) Find the period of the motion
(D) Find the amplitude of the motion
(E) Find the phase angle of the motion (in radian)