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AP Physics

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A 45 kg gymnast steps off a platform located 1.3 m above a spring board. The spring board compresses 25 cm. a)What is the spring constant of the spring board? b) If energy is in fact conserved in this problem, explain how high the gymnast will spring upward. Assume the gymnast does not use is legs to propel himself upward. c) Suppose a diving board has a spring constant of 9500 N/m. If a 75 kg diver compresses the diving board a distance of 35 cm, how high will the diver be launched above the relaxed position of the diving board?

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