1. The problem statement, all variables and given/known data A rotating bicycle wheel has an angular speed of 2.84 rad/s at some instant of time. It is then given an angular acceleration of 1.75 rad/s2. A chalk line drawn on the wheel is horizontal at t = 0. What angle does this line make with its original direction at t = 1.77 s? 2. Relevant equations The rotational kinematics equations. 3. The attempt at a solution Using the equation: Δθ = ωt + (1/2)(ang. accn)t2 = (2.84)(1.77) + 0.5 (1.75)(1.77)^2 = 7.77rad I can't get it right. I have a feeling I have to use the angular acceleration to change the angular velocity, but I can't figure out how to do this. It's probably something really silly so if someone could point out what I'm doing wrong it would be much appreciated.