Two bicycle tires are set rolling with the same initial speed of 3.30m/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 40psi and goes a distance of 18.2m; the other is at 105psi and goes a distance of 92.7m. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be g=9.80m/s^2.
What is the coefficient of rolling friction for the tire under low pressure?