Question: If the sprinter from the previous problem accelerates at that rate for 20 m, and then maintains that velocity for the remainder of the 100-m

If the sprinter from the previous problem accelerates at that rate for 20 m, and then maintains that velocity for the remainder of the 100-m dash, what will be his time for the race?

Data given in Previous Problem

A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s². What is the net external force on him?

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