(Answered) Mary and sally are in a foot race when mary is 22mfrom the

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Mary and Sally are in a foot race. When Mary is 22mfrom the finish line, she has a speed of4.0m/sand is5.0mbehind Sally, who has a speed of5.0m/s.Sally thinks she has an easy win and so, during the remaining portion of the race, decelerates at a constant rate of 0.38m/s2to the finish line.

What constant acceleration does Mary now need during the remaining portion of the race, if she wishes to cross the finish line side-by-side with Sally?

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