F13-3. A spring of stiffness k = 500 N/m is mounted against the 10-kg block. If the block is subjected to the force of F = 500 N, determine its velocity at s = 0.5 m. When s = 0, the block is at rest and the spring is uncompressed. The contact surface is smooth. F = 500 N k = 500 N/m wwww

The 20-lb box slides on the surface for which μ = 0.3. The box has a velocity v = 15 ft/s when it is 2 ft from the plate. If it strikes the smooth plate, which has a weight of 10 lb and is held in position by an unstretched spring of stiffness k = 400 lb/ft, determine the maximum compression imparted to the spring. Take e = 0.8 between the box and the plate. Assume that the plate slides smoothly. v = 15 ft/s 2 ft

The 5 kg cylinder is released from rest in the postion shown in the figure below. Determine the maximum compression xmax of the spring. The stiffness of the spring is 1800 N/m.

The collar has a mass of 28-kg and slides along the smooth rod. Two springs are attached to it and the ends of the rod as shown. S kA kB: 12 0.25 m Each spring has an uncompressed length of I1=2-m and l2=3-m and stiffnesses k1=51-N/m and k2=176-N/m respectively. Determine the velocity that must be subjected to the collar to generate a compression of 0.7 m