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

[zasdfgbnm]

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.