Question: Figure P12.56 shows a truss that supports a downward force of 1 000 N applied at the point B. The truss has negligible weight. The

Figure P12.56 shows a truss that supports a downward force of 1 000 N applied at the point B. The truss has negligible weight. The piers at A and C are smooth.
(a) Apply the conditions of equilibrium to prove that nA = 366 N and nC = 634 N.
(b) Show that, because forces act on the light truss only at the hinge joints, each bar of the truss must exert on each hinge pin only a force along the length of that bar€”a force of tension or compression.
(c) Find the force of tension or of compression in each of the three bars

Figure P12.56 shows a truss that supports

1000 N DA O Figure P12.56

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a b c The height of pin B is The length of bar BC is then BC 500m sin 450 Consider the ent... View full answer

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