A 1.65 kg mass is placed on the end of a spring that has a spring constant of 195 n/m . The mass-spring system rests on a frictionless incline that is at an angle of 30 degrees from the horizontal The system is eased into its equilibrium position, where it stays.
a) Determine the change in elastic potential energy of the system.(answer in J)
b) Determine the system's change in gravitational potential energy( answer in J)