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A sprinter explodes out of the starting block with an acceleration of +2.48 m/s2, which she...

A sprinter explodes out of the starting block with an acceleration of +2.48 m/s2, which she sustains for 1.44 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at (a)t = 1.44 s and (b) at the end of the race?

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Answer #1

Block velocity when acceleration is there , and velocity when acceleration is zero

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