Предмет: Физика, автор: sholneke

дано скорость 72км/ч путь 40дм найти время

Ответы

Автор ответа: Аноним

72км/ч=72*1000м/3600с=20м/с; 40дм=4м;
t=S/V=4/20=1/5=0,2c.

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