Determine the external reactions at A and F for the roof truss loaded as shown (positive answers are to the right and up). The vertical loads represent the effect of the supported roofing materials, while the 410-N force represents a wind load. 540 N 410 N الا 220 N 60° B 440 N 560 N 230 N 60° 30° 30° 30 G -9.0 m Answers: Ax= Ay= Fy= i N N Z Z N

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