Solved: A sprinter explodes out of the starting block with
Chapter 2, Problem 2.55(choose chapter or problem)
A sprinter explodes out of the starting block with an acceleration of 2.3 m/s2 , which she sustains for 1.2 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity (a) at t 1.2 s and (b) at the end of the race? 19
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