Question: A runner accelerates from 4 . 3 m / s at 1 . 9 s from the start to 8 . 4 m / s

A runner accelerates from 4.3 m/s at 1.9 s from the start to 8.4 m/s at 7.5 s from the start. What was their average acceleration during that portion of the race? Give your answer to two decimal places

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