Problem 4. The uniform red and blue bars, each with mass m and length L, lie on a frictionless horizontal surface. The red bar has an angular velocity of wo and its center of mass is stationary prior to colliding with the blue bar in the position shown. The contact point is frictionless and has a coefficient of restitution of e = 1/2. Determine the angular velocities of the bars after the collision. Identifying a set of scalar equations and unknowns that they can be solved for to answer the question will be awarded full credit. B Wo m, L m, L A