2 Question: How can it be so hard to drag rubber across smooth glass if friction is caused by surface roughness? Keywords: friction, glass, rubber Asked by anon-225816 to Sameed, Jose, joannabarstow, Heidi, Chris on 21 Nov 2019.
Joanna Barstow answered on 21 Nov 2019:
That’s a really good question, and actually there’s still research being done into why rubber is so sticky. There’s more detail here in this BBC Science Focus article:
https://www.sciencefocus.com/science/why-does-rubber-have-high-friction/
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