The owner of a 3400-lb pickup truck tests the action of his rear-wheel shock absorbers b...

The owner of a 3400-lb pickup truck tests the action of his rear-wheel shock absorbers by applying a steady 100-lb force to the rear bumper and measuring a static deflection of 3 in. Upon sudden release of the force, the bumper rises and then falls to a maximum of ½ in. below the unloaded equilibrium position of the bumper on the first rebound. Treat the action as a one-dimensional problem with an equivalent mass of half the truck mass. Find the viscous damping factor for the rear end and the viscous damping coefficient for each shock absorber assuming its action to be vertical.