Предмет: Математика, автор: TheWrpath

Ракета за 4с пролетела 28км.Через секунду её скорость увеличивалась на 3км/с. Найди скорость ракеты в конце пятой секунды

Ответы

Автор ответа: michaellaz
0
Элементарно!
1) 28+3=31
Так как конец пятой секунды, то с начала 4 секунды прошло 2 секунды. Значит:
31+3=33км/ч
Ответ: 33км/ч
Автор ответа: michaellaz
0
Так как это конец пятой секунды, то с начала 4-ой прошло 2 секунды, значит 3)10+3=13км/ч Ответ:13км/ч
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