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physics

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A sled rider with a combined mass of 50.0kg are at the top of a hill of a 14m above the level of ground below. The sled is given a push providing an initial kinetic energy of 1700J. What is the potential energy at the top of the hill? After the push, what is the total enetgy on the top of the hill? What will be the kinetic energy at the bottom of the hill?

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    need the answer, how can i give what i don't have

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