A 2kg block is pushed against a horizontal spring with a force constant k = 400N/m, compressing it 22cm. When the block is released, it moves along a frictionless, horizontal surface and then up a frictionless curvy incline. (a) What is the speed of the block as it slides along the horizontal surface after having left the spring? (b) How far up above the horizontal surface does the block travel before starting to slide back down? (c) If the incline is not frictionless, and 1.5J of energy is converted to thermal energy (“used up” by friction), how far above the horizontal surface will the block travel?

A 2kg block is pushed against a horizontal spring with a force constant k = 400N/m, compressing it 22cm. When the block is released, it moves along a frictionless, horizontal surface and then up a frictionless curvy incline. (a) What is the speed of the block as it slides along the horizontal surface after having left the spring? (b) How far up above the horizontal surface does the block travel before starting to slide back down? (c) If the incline is not frictionless, and 1.5J of energy is converted to thermal energy (“used up” by friction), how far above the horizontal surface will the block travel?

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