Предмет: Физика, автор: 5Lizok5

за сколько времени плот пролывёт по реке 2,1 км если скорость течения реки 0,7 м/с.

Ответы

Автор ответа: evill2

2.1 км= 2100м
t=S/v
t=2100/0.7=3000c

Автор ответа: 5Lizok5

я так же делала как и вы ,а в учебнике ответ 50 мин. КАК БЫТЬ ?

Автор ответа: evill2

все легко, переведи секунды в минуты, то есть 3000/6-=50 мин

Автор ответа: evill2

60*

Автор ответа: 5Lizok5

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