IYPT 2000, Задачи на турнира — Задача 7. Merry-go-round

13th IYPT (2000)

Заглавие в източника

Source: metal.elte.hu 2000
Selected at the Preparatory Seminar in Visegrád on October 22—24, 1999
Exemplary solutions for 2000 →

Условие

A small, light, ball is kept at the bottom of a glass filled with an aqueous solution and then set free. Select the properties of the solution, so that a moving up time of several seconds is achieved. How will this time change if you put your glass on the surface of a rotating disk?

Решение

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Оригинал в Архива: 2000.txt