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Numeriprimi
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Yesterday I was at the Physics Olympiad. For one example I didn't do. I am ashamed! :-( And I want to know how to do it. Please help. It is like complicated homework, so I give it here.
We have two semicircles (as pictured) - http://fykos.cz/rocnik26/obrazky/s5u3_zadani.png
The lower semicircle has a radius r, the upper semicircle has a radius R. r is constant. The system must be stable. What must be R? How to determine R? If we shifted the upper semicircle, with which period will oscillate?
Thanks for your ideas. And sorry for my bad English.
Numeriprimi
We have two semicircles (as pictured) - http://fykos.cz/rocnik26/obrazky/s5u3_zadani.png
The lower semicircle has a radius r, the upper semicircle has a radius R. r is constant. The system must be stable. What must be R? How to determine R? If we shifted the upper semicircle, with which period will oscillate?
Thanks for your ideas. And sorry for my bad English.
Numeriprimi