Предмет: Физика, автор: 1ramazan1

Тело движется по окружности со скоростью 10 м/c . Каков модуль средней скорости за четверть периода?

Ответы

Автор ответа: derskaianadi
0
зменение импульса

mv-mvo - векторно

через половину периода скорость будет направлена в другую сторону

-mv-mv0 = -2mv

по модулю 2mv
Автор ответа: 1ramazan1
0
масса неизвестна!
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