A Frame Truss $-$ Manilla Folder Bridge $-$ Solve the Forces

You will be graded on free body diagrams, showing equations, as well as final answers.

For your truss you will need to calculate the internal and external forces. First calculate the external You will use your answers on the following slides

The bottom bar is $2mm$

The center bar is $4mm$

The tubes are $1010mm$ reaction forces and then all the internal forces. We will assume the ends are supported by one pin and one roller and that the truss will hold a load of $11lbs.$ You can do the calculations on a separate piece of paper. Be sure to show work including a final sketch with all forces, internal and external, and whether the internal forces are in tension $(T)$ or compression $($C$)($insert an image of your work$)$