1. The problem statement, all variables and given/known data I am given this graph and asked to find: a. the particle's angular velocity at t=1s b. angular velocity at t=4s c. angular velocity at t=7s 2. Relevant equations ω = θ/t 3. The attempt at a solution I got 0 for a, which is the correct answer. However, I cannot seem to figure out b or c. For c, I got 2π/7 and it is incorrect. I've also tried 2π*radians/T and that doesn't work either. I'm not really sure what to do.