Truss 2
Free Body Diagram
Statically Determinant
Using the equation 2J=M+R we found that this truss is statically determinant if you place two pins on it. 2x5=6+4.
Reaction Forces
Efficiency
Using the formula, Eff.=F/W, where the force equals 39.3 Newtons and the weight is .01962 Newtons, i found that the Efficiency is 2003.1.