Предмет: Физика, автор: xusni9495

движущийся со скорости 30м/с автомобиль подвергается постоянному ускорению 2м/с на пути 175 м. сколько времени потребовалось бы на эту

Ответы

Автор ответа: 555ai555

Ответ:

t = 5 c

Объяснение:

Vo = 30м/с

a = 2м/с^2

S = 175 м

t = ?

S = Vo*t + a*t^2/2

175 = 30*t + t^2

t^2 + 30*t - 175 =0

t = - 35 (нет решений)

t = 5 c

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