Предмет: Физика, автор: Санджоо

С какой высоты упало тело, если при ударе о землю его скорость была 25м/с

Ответы

Автор ответа: kir3740
0
По закону сохранения энергии

mv²/2 = mgh
h = v²/(2g) = 625/20 = 31.25 м

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