Mathematics, 27.01.2021 07:30 sarahalexa19

a runner speeds up from 5 m/s to 9 m/s during the last strech of a race at a rate of 1 m/s². how long does it take the runner to reach the faster pace?

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a runner speeds up from 5 m/s to 9 m/s during the last strech of a race at a rate of 1 m/s². how lon...