A mass m= 1kilogram is released from rest on a frictionless track at a height h=5 meter. The mass slides on the track following the path shown and eventually strikes a spring compressing it by an amount, d. k = 1175 N/m. Find the mechanical energy of the mass at the release point? Find the gravitational potential energy of the mass when it is at point B? Find the kinetic energy of the mass just before it strikes the spring? Calculate by how much is the spring compressed at point B?