Question

A 53 kg sprinter, starting from rest, runs a 60 m  long race in 7.2 s with...

A 53 kg sprinter, starting from rest, runs a 60 m  long race in 7.2 s with a constant acceleration.

Part A

How much work does the sprinter do during the first 2.5 s of the race?

Express your answer to three significant figures and include the appropriate units.

Part B

What is the sprinter's average power output during the first 2.5 s of the race?

Express your answer to three significant figures and include the appropriate units.

Part C

How much work does the sprinter do during the final 2.5 s of the race?

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