Title | : | Physics Problem: A coin sits on a rotating platform. How fast can it spin before the coin slips? |
Lasting | : | 14.16 |
Date of publication | : | |
Views | : | 5,6 rb |
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Great vid, thnx My perplexity with this is once friction has reached its limit; it seems that another force comes into play to pull it off; but that’s not the case , right? If the coin wasn’t moving ( along the surface) before , my intuition wants there to be a force moving it off I still need to do more to understand this brThanks 🙏 Comment from : Geoff Phillips |
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What about if there is angular acceleration? Comment from : spsi22 |
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I'm intrigued by the idea that if the disk slowly spins up to some speed greater than what is necessary to cause slippage, does the coin slip first radially or tangentially? If it accelerates quite quickly, it would be tangential (really the coin might just stand still while the disk accelerates underneath it) If it's accelerating very slowly, once it hits the critical omega the coin will slip radially, as calculated in this vid I think Comment from : Andy Rundquist |
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