IYPT 1998, Задачи на турнира — Задача 3. Spinning disc

11th IYPT (1998)

Заглавие в източника

Sources: Official version 97/10/15, Prouza 10-20-1997, Školská fyzika, 1996/1997, 3, 71—72, Vlado Koutny ca. 1999
Selected at the Preparatory Seminar in Germany on Oct. 15, 1997
Exemplary solutions for 1998 →

Условие

Investigate and explain the phenomenon of spinning annular disc as they progress down a straight, cylindrical rod. If the rod is moved upwards at a defined velocity, the disc spins at constant height. Investigate the mechanism.

Решение

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Оригинал в Архива: 1998.txt