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Verified answer
|F₂| = |F₃| = 10 N yang mengapit sudut 120° aka menghasilkan. resultan
R₁ = |F₂ + F₃| = 10 N,
ke arah sb. x -
R₁ dan F₁ segaris berlawanan arah, akan menghasilkan resultan sebesar
|R| = |R₁| - |F₁| = 5 N ✓
ke arah sb x -.