8. A car takes 55 s to complete one revolution around a circular lap that has a radius of 185 m. What is the velocity of the car? 9. What is the radial acceleration, ar, of the car in problem 8? If the car from problem 8 weighs 1,500 kg then how much frictional force is necessary to keep it moving in a circular path? What coefficient of static friction (between the car's tires and the road) is needed for the car in problem 8 not to skid?

8. A car takes 55 s to complete one revolution around a circular lap that has a radius of 185 m. What is the velocity of the car? 9. What is the radial acceleration, ar, of the car in problem 8? If the car from problem 8 weighs 1,500 kg then how much frictional force is necessary to keep it moving in a circular path? What coefficient of static friction (between the car's tires and the road) is needed for the car in problem 8 not to skid?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 46PQ

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