Banked Circular Highway Curve? Find friction

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Homework Help Overview

The discussion revolves around a physics problem involving a banked circular highway curve, specifically focusing on the minimum coefficient of friction required for vehicles to navigate the curve safely under reduced speed conditions. The context includes parameters such as the design speed, curve radius, and current traffic speed on a rainy day.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the calculation of the banking angle and express uncertainty about subsequent steps. Some inquire about the use of free body diagrams and the resolution of forces involved in the problem. Others share their attempts at finding the coefficient of friction and question the correctness of their answers.

Discussion Status

The discussion is active, with participants sharing their calculations and seeking clarification on their approaches. Some have provided numerical answers and are questioning their accuracy, while others are exploring different methods to solve the problem. There is no explicit consensus on the correct approach or answer yet.

Contextual Notes

Participants mention constraints related to homework deadlines and the need to complete multiple problems, indicating a time-sensitive environment. There is also a reference to specific course materials that may provide additional context or guidance.

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.
 
Last edited by a moderator:
  • #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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