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F1x = 20 cos 60
= 20. 1/2
= 10 N
F2x = -10 cos 60
= -10. 1/2
= -5 N
HASIL JUMLAH NYA
= 5
sumbu y
F1y = 0
F2y = 10 sin 60
= 10. 1/2 akar 3
= 5 akar 3 N
HASIL JUMLAH NYA
= 5 akar 3
besar resultan
R = (akar) 5^2 + 5 akar 3^2
= (akar) 25 + 75
= (akar) 100
= 10N