IOM 2020, Блиц — Задача 27
The Blitz-contest of IOM-2020
Условие
A ball falls down vertically from the initial height of 5 m. After each hit with the ground it bounces back, losing 30% of its energy. What is the total duration of its motion? m/s.
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.
Отговори
11.15 s
Answer key: [11;11.3]
Решение
Внимание: Непълно решение
The source contains only the answer key, no worked solution.
Answer: [11;11.3]
Оригинал в Архива: iom-2020-blitz-tasks.pdf · официални решения: iom-2020-blitz-answers.pdf