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Q. Two bicycle tires are set rolling with the similar initial speed of 3.80 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 17.4 m; the other is at 105-{rm psi} and goes a distance of 94-m. Suppose that the net horizontal force is because of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of friction for the tire under low pressure?

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