Truss 1
Free Body Diagram
Statically determinate
Using the formula 2J=M+R we found that this truss is statically determinate because 2x3= 3+3.
Reaction forces
Using trigonometry i found that AB and BC both have forces of 45.90 N and are both in compression. The force on AC is in tension and is 19.46 Newtons.
Efficiency
Efficiency is calculated by the force that the truss could sustain over the weight in newtons. This truss weighed .014715 Newtons and sustained 44.51 newtons. Therefore its efficiency is 3024.8