A rotating wheel requires 4.7 s to rotate through 33.5 rev. Its angular speed at the end of the 4.7 s interval is 45.5 rad/s. What is its constant angular acceleration? Assume the angular acceleration has the same sign as the angular velocity. Answer in units of rad/s2. wf^2-wo^2=2a(Of-Oo) Ive got a page of failed equations on my paper, and i need a push in the right direction.