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Concerns the application of the laws of physics to analyze common situations encountered in everyday life.

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64 views

Why do bicycle wheels rotate when I lift it upstairs?

When I go upstairs with my bike I notice that its wheels start to rotate, or they spin faster or slower if they have initial speed. I tried to move the front wheel with acceleration in different direc …
Evgeny Sizov's user avatar
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1 answer
89 views

How much will a sheet of paper bend in a following situation?

Imagine a sheet of paper (or any other elastic material) of length $l$, width $d$ and thickness $s$. It's placed partially hanging from the edge of a table (n% of it's lenght is loose), pressed betwee …
Evgeny Sizov's user avatar