1. The problem statement, all variables and given/known data During a certain period of time, the angular position of a swinging door is described by θ = 5.00 + 10.0t + 2.00t2, where θ is in radians and t is in seconds. Determine the angular position, angular speed, and angular acceleration of the door (a) at t = 0 and (b) at t = 3.00 s. 2. Relevant equations ω = dθ / dt α = dω / dt 3. The attempt at a solution a) θ = 5.00 ω = 5 / 0 α = dω / 0 This just doesn't make sense, you cannot divide by 0. But the other formulas, have either both ω and α or t cancels everything out. This is supposed to be a simple problem of instantaneous angular speed and acceleration, how am I over complicating this?