IOM 2018, Блиц, английски — Задача 63

OLYMPIAD OF METROPOLISES. Moscow, September 3 · 3 септември 2018 г.

Условие

Mary dropped a stick in a deep hole. After 10 s she heard the stick hit the bottom. If we assume no air resistance and the speed of sound to be 343 m/s, how deep was the hole?

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: blitz-answers.pdf