The angular velocity is the derivative of the angular position, and the angular acceleration is the derivative of the angular velocity:
Substituting t = 2 seconds, I get an angular velocity of 4.32 x 10-2 rad/s. The angular acceleration is not a function of time; it is a constant 1.6 x 10-3 rad/s2. From the equations on pages 29-30 in your reference handbook,
