A 70-kg sprinter pushes on the starting blocks for 0.20 s
and leaves them with a speed of 5.0 m/s. He then continues
to accelerate for a further 5.0 s until his speed is 12 m/s. Find
the reaction force exerted by the starting blocks on the sprinter
and his average power output in each of the accelerations.
Answers: 3
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A 70-kg sprinter pushes on the starting blocks for 0.20 s
and leaves them with a speed of 5.0 m/s....
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