6.29. Model: You can model the beam as a particle in static equilibrium. Visualize:Solve: Using Newton’s first law, the equilibrium equations in vector and component form are: ()net12Gnet12Gnet12G0 N0 Nxxxxyy yyFTTFTFTF=++ =GGGG GUsing the free-body diagram yields: 112 21 122Gsinsin0 N coscos0 NTTFθθ−+=+−=The mathematical model is reduced to a simple algebraic system of two equations with two unknowns, 1Tand 2.TSubstituting 1220 , 30 ,=° =°and G9800 N,
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