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Автор - Ilosh3

За какое время автомобиль пройдёт 30 км,двигаясь со средней скоростью 15м/с?

Ответ

Автор - dim9n9

ДАНО:    

s = 30км

v = 15мс

----------------

t = ?

РЕШЕНИЕ:

15 мс переведем в кмч = 54 кмч

(1мс = 3,6 кмч)

найдем t по формуле t = s : v

t = 30 : 54

t = 0,5555555555556 ≈ 0.5 часа

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