Coefficient of friction of a moving car

AI Thread Summary
To determine the coefficient of friction required for a car moving at 5 m/s to round a corner with an 8 m radius without skidding, the frictional force must provide the necessary centripetal force. The relevant equations include the centripetal force formula, Fc = mv²/r, and the frictional force equation, Fc = Fn(mk). The discussion emphasizes applying Newton's second law to find the necessary acceleration and forces. Participants encourage breaking down the problem step-by-step to identify the required frictional force. Understanding these principles is crucial for solving the homework problem effectively.
katem
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Homework Statement



A car moving at 5 m/s tries to round a flat corner that has a radius of curvature of 8 m. How large must the coefficient of friction be between the wheels and the roadway if the car is not to skid?

Homework Equations



mv^2/r i don't know anything else. Fc=Fn(mk)

The Attempt at a Solution


Don't really know where to start?


 
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Start with the frictional force providing the centripetal force.
 
Welcome to PF!

Hi katem! Welcome to PF! :smile:

(try using the X2 and X2 tags just above the Reply box :wink:)

Use good ol' Newton's second law …

what must the acceleration be? and what must the forces be, to produce that acceleration? :smile:
 

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