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Py = P. sin 53° = 100. 0,8 = 80
resultan antara Q dan R adalah 100. arahnya ke sumbu x negatif
jadi
X = Px - Rqr = 60-100 = -40
Y = Py = 80
R = akar (X^2 + Y^2) = akar (1600+6400) = akar (8000) = 40 akar 5 N
kalau gak salah sih gitu