IYPT 2015, Задачи на турнира — Задача 9. Hovercraft
Problems for the 28th IYPT 2015
Release
Released by the IOC on July 11th, 2014
Епиграф
“Would you tell me, please, which way I ought to walk from here?”
“That depends a good deal on where you want to get to,” said the Cat.
Lewis Carroll
Условие
A simple model hovercraft can be built using a CD and a balloon filled with air attached via a tube. Exiting air can lift the device making it float over a surface with low friction. Investigate how the relevant parameters influence the time of the 'low-friction' state.
Решение
Внимание: Непълно решение
Това е открита изследователска задача — официални решения не се публикуват.
Автори
Authors: Alan Allinson, John Balcombe, Roderick Bloem, Artsiom Bury, Samuel Byland, Nikita Chernikov, Lars Gislén, Łukasz Gładczuk, Timotheus Hell, Mihály Hömöstrei, Stanislav Krasulin, Valentin Lobyshev, Ilya Martchenko, Reza Montazeri Namin, Stanisław Świdwiński, Boris Vavrík, Evgeny Yunosov.
Problem selection committee: John Balcombe, Samuel Byland, Ilya Martchenko.
Epigraph selected by Evgeny Yunosov.
Оригинал в Архива: 2015.pdf