Question
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a car can safely travel if the radius of the track is 77.0 m and the coefficient of friction is 0.36?
Answers
For a flat track, equate the maximum friction force to the required centripetal force.
0.36 M g = M V^2/R
The M's cancel. Solve for V
The friction coefficient you are using is the static one, since the tires (although rolling) are not skidding.
0.36 M g = M V^2/R
The M's cancel. Solve for V
The friction coefficient you are using is the static one, since the tires (although rolling) are not skidding.
5.3