Figure presents a plane truss system. Elasticity

modulus and the cross$-$sectional areas of the truss members are

E $=200$GPa $,2$

$14$ A A $==0\mathrm{.}01$m and $2$

$23$ A A $==0\mathrm{.}02$m $,$

respectively. The force acting at the node $$ is $900$kN Py $=$ and

the nodal coordinates of the points $1,2,3$ and $4$ are $(0,2$m$),$

$(2$m$,0),(4$m$,2$m$),(0$m$,0$m$),$ respectively. Determine,

a$)$ Displacement of the nodes in local and global coordinates,

b$)$ Support reactions,

c$)$ Stresses,

d$)$ Axial forces of the members.QUESTION $1$: Figure presents a plane truss system. Elasticity

modulus and the cross$-$sectional areas of the truss members are

$E=200$GPa,$A_1=A_4=0\mathrm{.}01m^2,$ and $A_2=A_3=0\mathrm{.}02m^2,$

respectively. The force acting at the node $(3)$ is $P_y=900kN$ and

the nodal coordinates of the points $1,2,3$ and $4$ are $(0,2m),$

$(2m,0),(4m,2m),(0m,0m),$ respectively. Determine,

a$)$ Displacement of the nodes in local and global coordinates,

b$)$ Support reactions,

c$)$ Stresses,

d$)$ Axial forces of the members.