1. The problem statement, all variables and given/known data Starting from rest, a spinning compact disk undergoes an angular acceleration of 5.0 rad/s^2. What is the angular speed of the disk after 3 revolutions? 2. Relevant equations a=Δω/Δt ω=Δθ/Δt 3. The attempt at a solution I do not understand how to solve this equation when I am not given a time. I don't have a radius, so I can't find the circumference either. How can I solve this?