Physics, 22.09.2019 19:30 bella51032

Mary and sally are in a foot race. when mary is 22 m from the finish line, she has a speed of 4.0 m/s and is 5.0 m behind sally, who has a speed of 5.0 m/s. sally thinks she has an easy win and so, during the remaining portion of the race, decelerates at a constant rate of 0.50 m/s2 to the finish line.

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Mary and sally are in a foot race. when mary is 22 m from the finish line, she has a speed of 4.0 m/...