A typical male sprinter can maintain his maximum
Chapter 2, Problem 2.55(choose chapter or problem)
A typical male sprinter can maintain his maximum acceleration for 2.0 s, and his maximum speed is 10 m>s. After he reaches this maximum speed, his acceleration becomes zero, and then he runs at constant speed. Assume that his acceleration is constant during the first 2.0 s of the race, that he starts from rest, and that he runs in a straight line. (a) How far has the sprinter run when he reaches his maximum speed? (b) What is the magnitude of his average velocity for a race of these lengths: (i) 50.0 m; (ii) 100.0 m; (iii) 200.0 m?
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