(Solved): A 20 mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to ...

A 20 mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 130 kN was recorded. Using a factor of safety of 3.0, determine the required diameter (a) of rod AC, (b) of rod AD. 1 1.5 m A B -3 m C 48 KN -3 m D 48 KN