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Point A (1, 2, 3 cm) is subjected to forces shown in the diagram below. Determine magnitude of force F if (a) magnitude of moment about point A = 3 kN-cm (b) y-component of the moment about point A = 20 kN-cm counterclockwise. We are using a 3x3 matrix method to solve this.

Point A (1, 2, 3 cm) is sub
if (a) magnitude of momen
kN-cm counterclockwise.
1 kN
30
55°
40°
O.
15

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