IOM 2019, Блиц — Задача 37

OLYMPIAD OF METROPOLISES, Moscow, September 2, 2019 · 2 септември 2019 г.

Условие

A sprinter runs 100 m in 12 s. For the first 20 m his acceleration is constant and for the remaining distance his speed is constant. Calculate sprinters speed in the second part of the race.

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. $g = 10\ \mathrm{m/s^2}$.

Решение

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Оригинал в Архива: blitz-en-all-task-final.pdf