Предмет: Физика, автор: tito99051

На рычаг действуют силы F1 =30n и F2=10n.Каково расстояние между точками приложения этих сил,если плечо l1 силы F1 равно 20см?ПОЖАЛУЙСТА ПОМОГИТЕ ДАЮ 10 БАЛЛОВ

Ответы

Автор ответа: gayovichdiana

1

Ответ:80cm

Объяснение:

M1=M2

F1 • r1 = F2 • r2

30n • 20cm = 10n • r2

600 = 10 • r2

10 • r2 = 600

r2 = 600 : 10

r2 = 60 cm

r1+r2 = r

20cm + 60cm = 80 cm

tito99051: Спасибо выручила

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