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a321
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Homework Statement
A road with a radius of 74.8 m is banked so that a car can navigate the curve at a speed of 15 m/s without any friction. When a car is going 21.1 m/s on this curve, what minimum coefficient of static friction is needed if the car is to navigate the curve without slipping?
Homework Equations
The Attempt at a Solution
I figured out the angle by doing (v^2)/gr but I don't know how to find the coefficient of static friction. PLEASE HELP!