Solve the all parts of given problem:
Problem: A small glider is placed against a compressed spring at the bottom of an air track that slopes upward at an angle of 43.0o above the horizontal. The glider has mass 6.00×102kg. The spring has 640N/m and negligible mass. When the spring is released, the glider travels a maximum distance of 1.70m along the air track before sliding back down. Before reaching this maximum distance, the glider loses contact with the spring.
Part A: What distance was the spring originally compressed?
Part B: What is the kinetic energy of the glider at this point?
I want help to find what distance was the spring originally compressed.