Centripetal Force: Why Static Friction is Used in Bank Curve Problems

AI Thread Summary
In bank curve problems, the coefficient of static friction is used instead of kinetic friction because static friction applies when the wheels are not sliding, ensuring stability and control. Once the wheels begin to slide, the dynamics become more complex and less predictable. The static case allows for a clearer understanding of forces acting on the vehicle. This distinction is crucial for accurately analyzing motion on banked curves. Understanding these principles is essential for effective problem-solving in physics.
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Why do we use coefficient of static friction instead of coefficient of kinetic friction in bank curve problems
 
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When the wheels start sliding sideways things start getting complicated, and very exciting. When the part of the wheel in contact with the paved surface/track is not moving relative to the track (static case), things are under control.
 
Bystander said:
When the wheels start sliding sideways things start getting complicated, and very exciting. When the part of the wheel in contact with the paved surface/track is not moving relative to the track (static case), things are under control.[/QUOTE
 
Thanks for the clear answer.
 

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