The position of a particle is given by x = (2 cm) cos 10πt, where t is in seconds.
(a) What is the frequency?
(b) What is the period?
(c) What is the amplitude of the particle's motion?
(d) What is the first time after t = 0 that the particle is at its equilibrium position?
sIn what direction is it moving at that time?
in the negative direction
in the positive direction