The angular velocity of the rear wheel of a stationary exercise bike is 4.0 rad/s at time, t = 0, and its angular acceleration is constant and equal 2.0 rad/s^2. A particular spoke coincides with the +y axis at time, t = 0.
1. What is the wheel's angular velocity at this time?
2. What angle does this spoke make with the +x axis at time t = 3.0s?