Предмет: Математика, автор: avdovina238

Задача 8 на картинке пожалуйста помогите ​

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Автор ответа: Andrey0462
1

Задача на движение в противоположных направлениях.

Скорость удаления равна сумме скоростей удаляющихся объектов.

Используем формулу S = v*t.

Скорость одного голубя v₁ = 17,2 м/мин

скорость другого голубя v₂ = (17,2 м/мин -0,9 м/мин) = 16,3 м/мин

Скорость удаления

v = v₁ + v₂ = ( 17,2м/мин + 16,3м/мин) = 33,5 м/мин

S = 60,3 м - по условию.

Тогда

t = S : v = (60,3 м : 33,5 м/мин) = 1,8 мин

1.8 минуты  = 1 минута 48 секунд

перевод:

мин   мин   мин   сек

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