A world-class sprinter can reach a top speed (of about 11.9 m/s ) in the first...

Question

Question

A world-class sprinter can reach a top speed (of about 11.9 m/s ) in the first 20.0 m of a race.

What is the average acceleration of this sprinter?

Express your answer with the appropriate units.

How long does it take her to reach that speed?

Express your answer with the appropriate units.

Answer 1

Answer #1

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Answer 2

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