A truss is a structure made of members joined at their ends. For the truss shown in the figure, the forces in the nine members are determined by solving the following system of nine equations:
F2 + cos(48.81°)F1 = 0
F6 + cos(48.81°)F5 -F2 = 0,
sin(48.81°)F5 + F3 = 0 -cos(48.81°)F1 + F4 = 0
-sin(48.81°)F1 + F3 = 1 800, €“F4 €“ cos(48.81°)F5 = 1 200,
-F7- sin(48.81°)F5- sin(45°)F9 = 0, sin(45°)F9 = 1500,
- cos(45°)F9 - F8 = 0
Write the equations in matrix form and use MATLAB to determine the forces in the members. A positive force means tensile force and a negative force means compressive force. Display the results in a table where the first column displays the member number and the second column displays the corresponding force.

Transcribed Image Text:

1800 lb 200 Ib 48 1500 Ib 2AA