Ask Question
25 April, 07:06

skid marks about 6.7 km long. If the car had an initial speed of 425 km/h, estimate the coefficient of kinetic friction. The acceleration of gravity is 9.81 m/s 2.

+1
Answers (1)
  1. 25 April, 08:36
    0
    Explanation: F=umg where u is coefficient of kinetic friction.

    But F=ma.

    a = u^2/2S

    U = 425km/hr = (425*1000) / 3600 = 118m/s

    S = 6.7km = 6700m

    a = 118*118 / (2*6700) = 1.04m/s

    u = 1.04/9.8 = 0.11
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “skid marks about 6.7 km long. If the car had an initial speed of 425 km/h, estimate the coefficient of kinetic friction. The acceleration ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers