Предмет: Физика, автор: КсенияГн

Катер доплыл вдоль реки до точки B за 20с
l=800м
за сколько времени доплывет катер до точки C, если расстояние между В и С = 100м

Ответы

Автор ответа: Аноним
0
скорость катера 800/20=40 м/с;
100 м проплывет за 100/40=2,5 с.
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