F₁L₁ + F₂L₂ = F₃L₃ + F₄L₄
m₁gL₁ + m₂gL₂ = m₃gL₃ + m₄gL₄
80 · 3 + 1410 · 1 = 150 · 5 + m₄ · 10 · 9
90m₄ = 1650 - 750
m₄ = 900 : 90
m₄ = 10 (кг)
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
F₁L₁ + F₂L₂ = F₃L₃ + F₄L₄
m₁gL₁ + m₂gL₂ = m₃gL₃ + m₄gL₄
80 · 3 + 1410 · 1 = 150 · 5 + m₄ · 10 · 9
90m₄ = 1650 - 750
m₄ = 900 : 90
m₄ = 10 (кг)