10.2 Exercise 12

A circular disk of radius 10 cm has a constant angular acceleration of $1.0 \text{rad} / \text{s}^{2}$; at $t = 0$ its angular velocity is 2.0 rad/s. (a) Determine the disk’s angular velocity at $t = 5.0 \text{s}$. (b) What is the angle it has rotated through during this time? (c) What is the tangential acceleration of a point on the disk at $t = 5.0 \text{s} ?$