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Physics, 20.09.2020 01:01 priscillarios30

Автомобиль, двигаясь равномерно, проходит третью часть пути со скоростью 20 метров в час, а остальной путь - со скоростью 36 километров в час. Определите среднюю скорость на всём пути. ...пожалуйста помогите, поставлю 5 звёзд, зараннее спасибо...

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Автомобиль, двигаясь равномерно, проходит третью часть пути со скоростью 20 метров в час, а остально...
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