whereX2is the downward displacement of the product on the cushion. At Point D, the cushion has absorbed all of the system's kinetic energy 13.9 where maximum dynamic compression, dm= maximum value of x2. The maximum amount of energy absorbed by the cushion must equal the system's kinetic energy at impact: 13.10 for the maximum dynamic compression: 13.11 2 max 2 2 1 d m E = k 2 2 max 2 2 1 dm KE = W h = E = k 2 2 2 2 1 d m W h = k 2 2 2 k W h dm =whereX2is the downward displacement of the product on the cushion. At Point D, the cushion has absorbed all of the system's kinetic energy 13.9 where maximum dynamic compression, dm= maximum value of x2. The maximum amount of energy absorbed by the cushion must equal the system's kinetic energy at impact: 13.10 for the maximum dynamic compression: 13.11 2 max 2 2 1 d m E = k 2 2 max 2 2 1 dm KE = W h = E = k 2 2 2 2 1 d m W h = k 2 2 2 k W h dm =