2. A 4.50-kg wheel that is 34.5 cm in diameter rotates through an angle of 13.8 rad as it slows down uniformly from 22.0 rad/s to 13.5 rad/s. What is the magnitude of the angular acceleration of the wheel? =4.5 0 = 13.8rad = 86.7 A) 0.616 rad/s2 B) 5.45 rad/s2 C) 111 rad/s2 r = 01725