22.3.7
A thin rod of length AB = 0.6 m, rotating around the axis Az, hits the stop at a distance of a = 0.4 m. The moment of inertia IAz = 0.24 kg • m2. Angular velocity before impact? 0 = 4 rad / s, and after impact? = 3 rad / s. At the impact point, determine the recovery factor of the normal pulse. (Answer 0.75)