Question: 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

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?

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