1. The problem statement, all variables and given/known data If the radius of theCD below is 6.0cm and the angular velocity is 5.0 rad/s , whats is its angular displacement in 2.0s ? 2. Relevant equations Delta θ = ωt+.5∂t^2 3. The attempt at a solution I know the angular velocity and the time but how can I find out the radial acceleration or should I use the other equation to find the angular displacement ?