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3. Usain Bolt running a 100-meter race starts at rest, accelerates at constant acceleration with magnitude A for 3.5 seconds, and then runs at constant speed until the end. If Usain takes a total of 9.58 seconds to run the 100 meters, find the acceleration A
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Salvtson-Let, bal+ eovets χι distann e e With acceleration A and Xe tickan ee with eo n stack speed, so that, α+x, / we hav

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