Question: 8 . 4 8 The space truss supports a vertical load F at A . Each member is of length L , and the truss

8.48 The space truss supports a vertical load F at A. Each member is of length L, and the truss rests on the horizontal surface on roller supports at B,C, and D. Determine the axial forces in members AB,AC, and AD.
the answers are AB, AC and AD all equal 0.408F but i don't know how to get there please help
8 . 4 8 The space truss supports a vertical load

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