Question $1$

$[60]$

Using the direct stiffness method for the truss shown in Figure $2,$ solve for the following:

a$)$ The horizontal and vertical components of displacement at node $3$

$[40$ Marks$]$

b$)$ The element forces for the plane truss

$[20$ Marks$]$

Let $A=50{10}^{-4}{m}^2$ and $E=210$GPa for all elementskindly assist as soon as possible