IYPT 2017, Задачи на турнира — Задача 6. Fast Chain

Problems for the 30th IYPT 2017

Условие

A chain consisting of wooden blocks inclined relative to the vertical and connected by two threads (see Figure) is suspended vertically and then released. Compared to free fall, the chain falls faster when it is dropped onto a horizontal surface. Explain this phenomenon and investigate how the relevant parameters affect the motion.

A vertical chain of six inclined bars (wooden blocks) joined by two vertical threads; the bars alternate in tilt direction. A downward arrow on the right indicates the direction of fall; a grey horizontal bar below the chain represents the horizontal surface.

Решение

Внимание: Непълно решение

Това е открита изследователска задача — официални решения не се публикуват.

Оригинал в Архива: 2017.pdf