an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression, x = 3.00 cos 3t + ? divide by 4 where x is in centimeters and t is in seconds.
(a) At t = 0, find the position of the piston.
(b) At t = 0, find velocity of the piston
(c) At t = 0, find acceleration of the piston.
(d) Find the period and amplitude of the motion.
period
amplitude