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A 97-kg sprinter wishes to accelerate from rest to a speed
Chapter 6, Problem 13P(choose chapter or problem)
IP A 97-kg sprinter wishes to accelerate from rest to a speed of \(13 \mathrm{~m} / \mathrm{s}\) in a distance of \(22 \mathrm{~m}\). (a) What coefficient of static friction is required between the sprinter's shoes and the track? (b) Explain the strategy used to find the answer to part (a).
Questions & Answers
QUESTION:
IP A 97-kg sprinter wishes to accelerate from rest to a speed of \(13 \mathrm{~m} / \mathrm{s}\) in a distance of \(22 \mathrm{~m}\). (a) What coefficient of static friction is required between the sprinter's shoes and the track? (b) Explain the strategy used to find the answer to part (a).
ANSWER:a.)
Step 1 of 4
We have to find the coefficient of static friction required between the sprinter’s shoes and the track.
The coefficient of static friction can be found by using the equation for the force in direction.
Where,
coefficient of static friction
mass of the sprinter = 97 kg
m/s2
acceleration of the sprinter in m/s2