일반물리학 1 — Potential Energy and Conservation of Energy: Problem 31

31 As shown in Fig. 8-32, the right end of a spring is fixed to a wall. A 1.00 kg block is then pushed against the free end so that the spring is compressed by 0.25 m. After the block is released, it slides along a horizontal floor and (after leaving the spring) up an incline; both floor and incline are frictionless. Its maximum (vertical) height on the incline is 5.00 m. What are (a) the spring constant and (b) the maximum speed? (c) If the angle of the incline is increased, what happens to the maximum (vertical) height?