Предмет: Физика, автор: ganfonl

физика 7 класс :::::

Приложения:

Ответы

Автор ответа: nikitagerasimov605

2

Дано:

l1=7.2м

l2=3м

m2=1000кг

Решение:

F2/F1=l1/l2

m2g/m1g=l1/l2

Отсюда находим m1

m1=l2m2/m1=3*1000/7.2=416.7 кг

Ответ:416,7 кг.

ganfonl: спасибо большое

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