A small glider is placed against a compressed spring at thebottom of an air track that slopes upward at an angle of 40.0° above thehorizontal. The glider has mass 0.0900 kg. The spring has k = 640 N/mand negligible mass. When the spring is released, the glider travels amaximum distance of 1.80 m along the air track before sliding backdown. Before reaching this maximum distance, the glider loses contactwith the spring. (a) What distance was the spring originally compressed?(b) When the glider has traveled along the air track 0.80 m from its initialposition against the compressed spring, is it still in contact with thespring? What is the kinetic energy of the glider at this point?

A small glider is placed against a compressed spring at thebottom of an air track that slopes upward at an angle of 40.0° above thehorizontal. The glider has mass 0.0900 kg. The spring has k = 640 N/mand negligible mass. When the spring is released, the glider travels amaximum distance of 1.80 m along the air track before sliding backdown. Before reaching this maximum distance, the glider loses contactwith the spring. (a) What distance was the spring originally compressed?(b) When the glider has traveled along the air track 0.80 m from its initialposition against the compressed spring, is it still in contact with thespring? What is the kinetic energy of the glider at this point?

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