Предмет: Физика, автор: garikvasiliyana

Важіль перебуває в рівновазі (див. рисунок). Маса і першого, і другого вантажів становить 4 кг. Якою є маса третього вантажу? Вагою важеля знехтуйте. У відповідь записати чисельне значення у кілограмах

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Ответы

Автор ответа: zinovicgrigorij

Ответ: 4кг

Объяснение:

Дано:

m1=m2=4кг

l1=4

l2=1

l3=5

-----------

m2-?

Согласно условия равновесия:

m1*l1+m2*l2=m3*l3

Отсюда:

m3=(m1*l1+m2*l2)/l3=(4*4+4*1)/5=4кг

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