IOM 2017, Блиц — Задача 35

OLYMPIAD OF METROPOLISES. Moscow, September 4 · 4 септември 2017 г.

Условие

A red ball moving at the velocity of 2 m/s collides head on with a yellow ball of the same mass standing still. What is the velocity of the yellow ball after the collision if the red ball stops?

The answer should be given in the SI units unless otherwise stated. If the numerical result turns out to be an integer, it should be given as the answer. Otherwise round the result to the first decimal.
$g = 10\ \mathrm{m/s^2}$.

Отговори

Решение

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Оригинал в Архива: blitz.pdf · официални решения: answers-blitz.pdf