A harmonic oscillator bas angular frequency", and amplitude A
(a) What are the magnitudes of the displacement and velocity when the elastic potential energy is equal to the kinetic energy? (Assume that U = 0 at equilibrium.)
(b) How often does this occur in each cycle? What is the time between occurrences?
(c) At an instant when the displacement is equal to A/2, what fraction of the total energy of the system is kinetic and what fraction is potential?