A spring is used to stop a 50-kg package which is moving down a 20° incline. The spring has a constant k= 30 kN/m and is held by cables so

that it is initially compressed 50 mm. Knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest. The maximum additional deformation of the spring in bringing the package to rest is ___________m.