일반물리학 1 — Oscillations: Problem 59

59 The balance wheel of an old-fashioned watch oscillates with angular amplitude \(\pi\) rad and period 0.600 s. Find (a) the maximum angular speed of the wheel, (b) the angular speed at displacement \(\pi/2\) rad, and (c) the magnitude of the angular acceleration at displacement \(\pi/4\) rad.