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A roller coaster moving at 54 m/s begins from the bottom of a peak 69-m high....

A roller coaster moving at 54 m/s begins from the bottom of a peak 69-m high. What is the speed of the coaster after descending 34 m from the peak? Use energy conservation and express your answer to 1 decimal place.

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5 24 M 29M 59.9

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