(Refer to Exercise 87.) Use the following system of equations to determine the forces or weights W₁ and W₂ exerted on each rafter for the truss shown in the figure.

Exercise 87.

The simplest type of roof truss is a triangle. The truss shown in the figure is used to frame roofs of small buildings. If a 100-pound force is applied at the peak of the truss, then the forces or weights W₁ and W₂ exerted parallel to each rafter of the truss are determined by the following linear system of equations.

Transcribed Image Text:

W, + V2w, = 300 V3w, - V2w, = 0 150 lb W, W2 130° 45