19-55. The 15-lb rod AB is released from rest in the vertical position. If the coefficient or restitution between the floor and the cushion at B is e = 0.7, determine how high the end of the rod rebounds after impact with the floor. 2 ft

F18-7. If the 30-kg disk is released from rest when 0 = 0°, determine its angular velocity when e = 90°. %3D 0.3 m G.

R18–7. The system consists of a 20-lb disk A, 4-lb slender rod BC, and a 1-lb smooth collar C. If the disk rolls without slipping, determine the velocity of the collar at the instant the rod becomes horizontal, i.e., e = 0°. The system is released from rest when 0 = 45°. 3 ft 0.8 ft

15-51. 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

19-45. The 10-lb block is sliding on the smooth surface when the corner D hits a stop block S. Determine the minimum velocity v the block should have which would allow it to tip over on its side and land in the position shown. Neglect the size of S. Hint: During impact consider the weight of the block to be nonimpulsive. BE ft SHD

*18-64. The door is made from one piece, whose ends move along the horizontal and vertical tracks. If the door is in the open position, 6 = 0°, and then released, determine the speed at which its end A strikes the stop at C. Assume the door is a 180-lb thin plate having a width of 10 ft. 5 ft 3 ft

Please show answer clearly

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

B5