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Why does a glass topple when the cloth is pulled from under it

  • Thread starter N53nick
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  • #1
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When the cloth is pulled slowly, the glass moves with the cloth, when pulled faster, it topples. When jerked from underneath the glass, the glass stays put. Explain in terms of inertia and torque.

I think I have the first and last part, I'm confused about why it topples, however. Any help at all is appreciated
 

Answers and Replies

  • #2
DaveC426913
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Explain your ideas so far.
 
  • #3
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my ideas are:

when it's pulled faster, it has to overcome the force of the static friction, as the cloth does move underneath the glass. I believe the kinetic friction is what is affecting it, but I'm not sure where torque is involved
 

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