Problem 13P

A 97-kg sprinter wishes to accelerate from rest to a speed of 13 m/s in a distance of 22 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).

Solution 13P

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