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Physics, 04.09.2019 10:10 meowmeowcow

If a speeding train hits the brakes and it takes the train 39 seconds to go from 54.8 m/s to 12 m/s what is the acceleration?

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If a speeding train hits the brakes and it takes the train 39 seconds to go from 54.8 m/s to 12 m/s...
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