Secure https://session.masteringphysics.com/myct/mastering /assignment/s968820 M

Question

Secure https://session.masteringphysics.com/myct/mastering /assignment/s968820 MastergPhysics: Homework Set 7-Google Chrome Secure https://session.masteringphysics com/myctítemView?assignmentProblemtD-89669662 ials Homework Set 7 ± Rolling Friction and Bicycle Tires 50121 Previous Answers Constants I Periodic Table Correct Two bicycle tires are set rolling with the same initial speed of 3 70 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured One tre is infated to a pressure of 40 psi and goes a distance of 18.0 m the other is at 105 psi and goes a distance of 928 m Assume that the net horizontal force is due to rolling friction only and take the free-fal acceleration to be g = 9 80 me Part B What is the coefficient of rolling friction p4, for the second tire (the one inflated to 105 psi)? View Available Hint(s) Submit Previous Answers Incorrect Try Again: 3 attempts remaining

Explanation / Answer

vi = 3.70 m/s, vf = vi / 2 = 3.7 / 2 = 1.85 m/s

P1 = 40 psi, P2 = 105 psi

d1 = 18.0 m, d2 = 92.8 m

coefficient of rolling friction = vf2 - vi2 / 2 g d

part B) muk = (1.852 - 3.72) / (2 * 9.8 * 92.8)

coefficient of rolling friction = 0.00564

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---