Do Friction Forces Exist Between a Rod and a Shaggy Bowl?

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Homework Statement

http://picasaweb.google.com/lh/photo/ChOBWTwVEO3hI0wtftmdmw?feat=directlink
A rigid rod is put in a global bowl horizontally.The bowl is shaggy.Do friction forces exist where the rod and the bowl touch?

Homework Equations

The Attempt at a Solution

If the bowl is smooth,it's clear that friction forces don't exist.But what if the bowl is not smooth?

 

[LowlyPion]

Homework Statement

http://picasaweb.google.com/lh/photo/ChOBWTwVEO3hI0wtftmdmw?feat=directlink
A rigid rod is put in a global bowl horizontally.The bowl is shaggy.Do friction forces exist where the rod and the bowl touch?

Homework Equations

The Attempt at a Solution

If the bowl is smooth,it's clear that friction forces don't exist.But what if the bowl is not smooth?

Friction is a resistance to force. If the rod is otherwise stabilized by balanced forces x,y , then the effect of friction is not a static consideration.

 

[nlightner]

I cannot provide a definitive answer without further information and experimentation. Friction is a complex phenomenon that depends on various factors such as the surface roughness, materials involved, and applied forces. In this scenario, it is possible that friction forces may exist at the point where the rod and bowl touch, depending on the specific characteristics of the rod and bowl surfaces. To determine the presence and magnitude of friction forces, we would need to conduct experiments and measurements to analyze the interaction between the two surfaces. Therefore, it cannot be conclusively stated whether friction forces exist without further investigation.