IYPT 2003, Задачи на турнира — Задача 1. Motion of a kite

16th IYPT (2003)

Заглавие в източника

Source: Problems for the 16th IYPT (fyrisskolan.uppsala.se, Oct. 6, 2002)
Selected at the Preparatory Seminar at Wik Castle on Oct. 4—6, 2002
Exemplary solutions for 2003 →

Условие

On windy days one can see kites flying in the wind. Often, one-string kites move an a stable track, which looks like a number 8. Why does a kite move in such a way? Are there other stable tracks?

Решение

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Оригинал в Архива: 2003.txt