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Автор - chelovekrubik

Условие и вопрос на рисунке!!!

Ответ

Проверено экспертом

Автор - DedStar

Ответ:

5 с

Объяснение:

Дано:

V₀ = 0 м/с

ΔV = 10 м/с

α = 60°

а = 2 м/с²

_________

t - ?

Построим чертеж.

Δ OAB - равносторонний.

ΔV = V

V=V₀ + a·t

V = a·t

t = V / a = ΔV / a = 10 / 2 = 5 с

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