Предмет: Физика, автор: Аноним

Открыв это правило и убедившись в получении значительного выигрыша в силе,Архимед воскликнул:"Дайте мне точку опоры ,и я подниму землю!"Чтобы поднять землю,Архимед, привязав один конец рычага к земле и сев на другой конец его длинного плеча,проделал бы бесконечный путь в мировом пространстве . Представьте,что вы определили неподвижную точку опоры рычага на Луне.Как вы найдете длину рычага,который испльзовал бы Архимед для поднятия Земли силой 100Н?

Ответы

Автор ответа: Jrs

М -масса Земли =6*10²⁴ кг

L -первый рычаг расстояние от Земли до Луны =384 400 км

l -второй рычаг

F -cила действующая на второй рычаг

MgL=lF

l=MgL/F=6*10²⁴*10*384 400/100=0,23*10³⁰ км

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