19-58. The pendulum consists of a 10-lb solid ball and 4-lb rod. If it is released from rest when 60 = 0°, determine the angle 6, of rebound after the ball strikes the wall and the pendulum swings up to the point of momentary rest. Take e = 0.6. 0.3 ft 2 ft 0.3 ft

The system is made up of the 1-m, 6.5-kg uniform rod AB and the two uniform disks (each of 0.19 m radius and 1.5 kg mass). If the system is released from rest when = 80°, when rod AB has just become horizontal, determine the coefficient C in the expression Cw² which is the kinetic energy of rod AB at this instant. Assume the disks roll without slipping. Your answer must include 2 places after the decimal point. Please pay attention: the numbers may change since they are randomized. AB' Take g= 9.81 m/s². A-L B m Your Answer: Answer

17-59. rest when 0 = 0°, determine the magnitude of the reactive force exerted on it by pin B when 0 = 90°. The uniform slender rod has a mass m. If it is released from A В

15-47. The 30-Mg freight car A and 15-Mg freight car B are moving towards each other with the velocities shown. Determine the maximum compression of the spring mounted on car A. Neglect rolling resistance. 20 km/h 10 km/h k = 3 MN/m B