The displacement from equilibrium of an oscillating weight suspended by a spring and subject to the damping effect of friction is given by y(t) = 2e−t cos 6 cos 6 t, where y is the displacement in centimeters and t is the time in seconds (see figure).
Find the displacement for each time.
(a) t = 0
(b) t =1/4
(c) t =1/2