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
This question was answered on: Jul 11, 2017
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