At t = 0, a flywheel has an angular velocity of 4.7 rad/s, a constant angular acceleration of −0.25 rad/s², and a reference line at θ₀ = 0. (a) through what maximum angle θmax will the reference line turn in the positive direction? what are the (b) first and (c) second times the reference line will be at θ = 1 2 θmax? at what (d) negative time and (e) positive time will the reference line be at θ = -9.9 rad?