F = m Ac = m v^2/r
also
F = mu m g
so
mu g = v^2/r
mu = v^2 /(g r)
in other words the ratio of centripetal acceleration to g
static, tires not slipping
A and C. You have a typo. They are the same
A circular curve on a highway is designed for traffic moving at 27 m/s. The radius of the unbanked curve is 160 m. What is the minimum coefficient of friction between tires and the highway necessary to keep cars from sliding off the curve?
Is the friction static or kinetic? (type in the answer):
\mu =
The coeffienct of friction has to be which of the following for the car to stay on the curve?
A. greater than or equal to the value
B. less than or equal to the value
C. greater than or equal to the value
D. equal to the value
E. less than the value
1 answer
2 answers