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Rolling Friction. Two bicycle tires are set rolling with the same initial speed of vvv along...

Rolling Friction. Two bicycle tires are set rolling with the same initial speed of vvv 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 psi and goes s1s1s_1; the other is at 105 psi and goes s2s2s_2. Assume that the net horizontal force is due to rolling friction only.

a) What is the coefficient of rolling friction μrμr for the tire under low pressure?

b) What is the coefficient of rolling friction μrμr for the second one?

initial velocity = v
distance by first tyre = s1
distance by second tyre = s2

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Answer #1

Here we apply Newton's laws of motion and kinematics equation of motion for constant acceleration

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