Meriam, Kraige & Bolton — Kinetics of Systems of Particles: Problem 4_27

4/27 A horizontal bar of mass \(m_1\) and small diameter is suspended by two wires of length \(l\) from a carriage of mass \(m_2\) which is free to roll along the horizontal rails. If the bar and carriage are released from rest with the wires making an angle \(\theta\) with the vertical, determine the velocity \(v_{b/c}\) of the bar relative to the carriage and the velocity \(v_c\) of the carriage at the instant when \(\theta = 0\). Neglect all friction and treat the carriage and the bar as particles in the vertical plane of motion.