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Verified answer
F₁ = F₂ = 30√2 saling tegak lurus, menghasikan resultan
F₁₂ = 30√2 √2 = 60 N
F₁₂ segaris dengan F₃, menghasikan resultan
R = F₃ - F₁₂
R = 130 - 60
R = 70 N ← jwb