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posted by  tocheer67 on 11/7/2009 2:28:28 AM  |  status: Live  |  Earned Karma: 35

Rolling Friction and Bicycle Tires

Course Textbook Chapter Problem Needs by
General Physics N/A N/A N/A 11/7/2009 at 8:00:00 AM
Question Details:
Two bicycle tires are set rolling with the same initial speed of 3.50 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {\rm psi} and goes a distance of 19.0 m; the other is at
105 {\rm psi} and goes a distance of 94.0 m. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2

What is the coefficient of rolling friction μr for the tire under low pressure?
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