Banked Circular Highway Curve? Find friction

AI Thread Summary
A banked circular highway curve designed for 65 km/h and a radius of 230 m is being analyzed for traffic moving at 35 km/h in rainy conditions. Participants are trying to determine the minimum coefficient of friction required to prevent cars from sliding off the road, with some having calculated an angle of approximately 20 degrees. The discussion includes troubleshooting incorrect answers and sharing strategies, such as drawing free body diagrams to resolve forces. Participants express frustration with the problem-solving process but are actively seeking help and sharing resources. The conversation reflects a collaborative effort to understand the physics involved in negotiating banked curves under varying conditions.
GingerBread27
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A banked circular highway curve is designed for traffic moving at 65 km/h. The radius of the curve is 230 m. Traffic is moving along the highway at 35 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?

I've figured out an angle which equals close to 20 degrees but from there I have no clue what to do. Any Help?
 
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yeah, same question, i have a feeling a lot of uf people are visitin this site!
 
Thomas Hall :smile:
 
really? wow, i live in gainesville place... but yeah, this crap is making me angry... we're trying though
 
my bro's gf who is here lives in sled hall...
 
How did you get the angle ? Did you draw a free body diagram ?

Resolve all the forces along a pair of directions, and use the condition that there should be not resultant force (in either direction), or else the car will slip.
 
so have any of you uf people done any of the other problems on part 3? (of the 3 that are due tonight?) cause that's where we're strugglin the most, we've gotten almost all of the other 2 sections... we have one more on each section... (the ant and the abc blocks with pullies)
 
im over in Murphree Hall (near Fletcher)
 
i got an answer of .14 and it's wrong
 
  • #10
you have an aol name ginger?
 
  • #11
hey, I need help here too, it's the only one I can't get
 
  • #12
GingerBread27 said:
i got an answer of .14 and it's wrong

Show how you got that. We'll tell you what's wrong.
 
  • #13
you have an aol screen name greenman?
 
  • #14
Is 0.104 correct? (assuming it's online). Edit no I don't use AIM. I used to have it until I found out it was attached to Weatherbug and other such annoying malwares.
 
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  • #15
you have a aol name vsage?
 
  • #16
yes! how did you do it?
 
  • #17
yeah, greenman100
 
  • #18
UF guys, look at page 129, that will get you an angle
 
  • #19
its for 2048, lol
 
  • #20
that didnt work for us? the explanation you gave us vsage...
 
  • #21
yeah, don't worry man, its cool, we couldn't figure it out, but obviously someone else did, haha, well learn it eventually
 

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