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by JoeAltmaier
3952 days ago
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What are the units of that coefficient? Per square? And are we talking force or pressure. Hm. The experiment used blocks with hook-and-eye screws. You dragged them across the surface linked in a chain, then again stacked, in twos and threes. The result came out nothing like a linear relationship. |
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By an ideal linear friction, you should have measured the same force on all experiments. But reality is way more complex, and sometimes the ideal model won't give you even a first order approximation.
Your teacher shouldn't have used wood blocks (unless he wanted to make a point), metal ones would give better results.