Magnitude of Friction Force - Circular Motion

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Homework Help Overview

The problem involves a car traveling around a circular path, requiring the determination of the magnitude of the friction force necessary to maintain its trajectory. The context is centered on circular motion and the forces acting on an object in that scenario.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the gravitational force acting on the car but expresses confusion regarding the concept of frictional force and its application in this context. Some participants suggest that knowledge of friction is not necessary, emphasizing the importance of understanding the acceleration in circular motion.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. While some guidance has been offered regarding the relationship between acceleration and friction, the original poster continues to seek clarity on how to approach the problem effectively.

Contextual Notes

The original poster mentions difficulty in applying the concept of friction to the problem, particularly due to a lack of information about the coefficient of friction. This uncertainty may be impacting their ability to progress in the discussion.

Chica1975
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Homework Statement


A car of mass 1164kg was traveling around a 288m radius corner at a speed of 10.8m/s. What was the magnitude of the fiction force required to maintain the vehicles path?


Homework Equations


F=ma
I have no idea after that


The Attempt at a Solution


I found mg = 11407.20

Can someone please explain about frictional force, I find this very hard, I have read and reread a lot of info but I just don't get it. Especially when I have to apply it to problems and I don't have the coefficient.

I am really stuck, please help!
 
Physics news on Phys.org
You don't need to know anything about friction to solve this. You just need to know the acceleration of the car, which is in circular motion with constant speed.
The only force that can cause this acceleration is the friction force.
 
Thanks but I still have no idea how to tackle this. Can someone please help me.
 
Anyone?
 

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