Предмет: Физика, автор: Сонечка43210

Мальчик весом 400 Н держит на вытянутой руке гирю массой 10 кг. Определите силу, с которой он давит на землю. С дано и формулай плиз

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Автор ответа: chatbefleur1

нашёл такую, может поможет

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№ 51.
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