Circular Motion force problem?

AI Thread Summary
The discussion revolves around calculating the maximum speed a car can safely travel on a flat circular track with a radius of 80 meters and a friction coefficient of 0.40. Participants emphasize the role of centripetal acceleration and the concept of fictitious forces, specifically centrifugal force. A suggestion is made to begin by calculating centripetal acceleration at a given speed. The conversation encourages sharing any attempts at solving the problem to facilitate further assistance. Understanding these concepts is crucial for solving the problem effectively.
glindawantsme
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Homework Statement



Fiction 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 80 meters, and the coefficient of friction is .40?


Homework Equations



Absolutely no clue!

The Attempt at a Solution



I really attempted this problem but came up with nothing worth putting in here. Please help!
 
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fictitious force

Hi glindawantsme! :smile:
glindawantsme said:
Fiction provides the force …

That's exactly why centrifugal force is called a fictitious force! :biggrin:
… 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 80 meters, and the coefficient of friction is .40?

Hint: start by calculating the centripetal acceleration at speed v.

Show us what you get, and where you're stuck, and then we'll know how to help. :wink:
 

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