Предмет: Математика, автор: Nastuylkavysoka16

Швидкість товарного поїзда дорівнює 54 км/год. Яка довжина цього поїзда якщо повз нерухомого спостерігача він проходить за 12 с?

Ответы

Автор ответа: anastasyacwetkova

0

1 година=3600 секунд
54 км - 3600 с.
х км - 12 с
х=54*12/3600=0,18 км=180 м - довжина поїзда

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