Mass M1, of 5.00 kg, is pressed against a spring, of spring constant = 770 N/m, as shown above. Once compressed, the front of the mass sits a distance 1.25 m from the bottom of an inclined plane. The incline’s angle of elevation measures 36.5°. A) B) C) D) E) What is the potential energy stored in this system before M1 is released? What will be the maximum kinetic energy of the mass once M1 is released? What will be the maximum velocity of the mass once M1 is released? How far up the incline will M1 move before it comes to a stop? What is the measure of the work done on M1 by the spring?