Concept Question about Resonance and Oscillations

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SUMMARY

The discussion centers on the relationship between resonance, oscillations, and the phenomenon of shoelaces becoming untied during walking. The user speculates that resonant vibrations may cause their shoelaces to untie more frequently when walking faster, suggesting a connection between forced oscillations and friction. However, the response clarifies that resonance requires specific conditions, such as tension in the shoelaces, and that the observed effect is likely due to increased force rather than resonance overcoming friction.

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Kraygar
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This may sound like a strange question...

I was walking away from my physics class today and I wondered if resonant vibrations were the reason my shoelaces become untied. I noticed that when I walk faster, and produce what I believe are more forced oscillations, they become untied more frequently.

If I am thinking about this correctly, does this mean that resonance can overcome friction?

In trying to understand physics better, I've been trying to relate new concepts to more simple ideas. If I am very off base, any recommendations would be welcome. Thanks!
 
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Welcome to PF!

Hi Kraygar! Welcome to PF! :smile:

I'm sure that resonance can overcome friction …*but I don't think that's happening with your shoe-laces.

Unless your shoelaces are under tension (which, as soon as they become slightly loose, they can't be), what would be resonating?

Also, resonance depends fairly precisely on frequency … if your loosening just steadily increases with frequency, that's just because you're using extra force.

Have you tried walking at the same speed, but with more frequent footsteps? :smile:
 

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