1. The problem statement, all variables and given/known data A bicycle rider is moving with a velocity of 13.0 m/s. What is the angular velocity of his wheels if they have a diameter of 0.660m? Assume the wheels are rolling without slipping. a) 39.4 m/s b) 19.7 m/s c) 39.4 s-1 d) 4.29 s-1 e) none of the above 2. Relevant equations v = ω r 3. The attempt at a solution ω = v/r ω = (13m/s) / (0.330m) = 39.4 s-1 This problem was given on a test, I put "c" and got it wrong. It seems very straightforward and I'm not sure where I went wrong. Is there a mistake in my work? Im thinking it was most likely a mistake with the grading machine but I just wanted someone to confirm before I talked to the teacher. Thanks.