QUESTION $2$

$[35$ MARKS$]$

Determine the joint displacements, reactions, and member forces of the truss in Figure Q$2$ below by the direct stiffness method. Member properties: $A_1=3500m{m}^2$ and $A_2=4500m{m}^2($member $(2)-(3)),$ and $E=200000$MPa

Y