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komponen x dgn cos
komponen y dgn sin
Fx1 = F1 cos 30 Fy1 = F1 sin 30
= 14. 1/2 √3 = 14 . 1/2
= 7√3 = 7
Fx2 = F2 cos 150 Fy2 = F2 sin 150
= 14 (-1/2 √3) = 14. 1/2
= -7√3 = 7
Fx3 = F3 cos 270 Fy3 = F3 sin 270
= 10. 0 = 10 (-1)
= 0 = -10
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ΣFx = 0 ΣFy = 4
R = √ΣFx² + ΣFy²
=√ 0 + 4²
= √4²
= 4 N