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1. The sum of the forces F_{A} + F_{B} + F_{C} = 0. The magnitudes of lF_{A}l = 100 N and lF_{B}l = 80N. Graphically determine the magnitude lF_{C}l and the angle α
2. See Attachment
3. The attempts at the solution are as follows:
F_{Bx} = 80N cos 30° = 69.3 N
F_{By} = 80N sin 30° = 40.0 N
F_{Ax} = 100N cos 0° = 100 N
F_{Ay} = 100N sin 0° = 0N
After this, I can't figure out what to do, or if I am even on the right track.
2. See Attachment
3. The attempts at the solution are as follows:
F_{Bx} = 80N cos 30° = 69.3 N
F_{By} = 80N sin 30° = 40.0 N
F_{Ax} = 100N cos 0° = 100 N
F_{Ay} = 100N sin 0° = 0N
After this, I can't figure out what to do, or if I am even on the right track.
Attachments

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