$F_y^B=$ Concentrated force acting on the joint as shown in the figure $($Magnitude is $281$bf$)$

The links $AB$ and $BC$ have a square cross$-$section of $40mm40mm$

Simplifying assumptions you are allowed to consider:

The pin joints at $A,B$ and $C$ are frictionless

The slider at $C$ can slide horizontally without any frictional resistance from

support at the bottom

The slider does not restrict rotation along $z-$axis of link $BC$ about point $C$

The slider stays horizontal as shown in the picture

Wall support shown in grey are rigid

Do the following:

Draw a combined Free Body Diagram of the entire structure $($include links, slider and spring$)$

For the links $AB$ and $BC,$ obtain reaction forces and moments at $A,B,$ and $C$

Compute $F_x^A,F_y^A,F_z^A,M_x^A,M_y^A,M_z^A$

Compute $F_x^B,F_y^B,F_z^B,M_x^B,M_y^B,M_z^B$

Compute $F_x^C,F_y^C,F_z^C,M_x^C,M_y^C,M_z^C$

Find the location where bending moment is highest

Find the location where the stresses are highest

Find factor of safety at that point assuming yield strength to be $1500$ MPa

Draw a $3$D stress element $($cube$)$ showing the state of stress that point

Compute absolute maximum shear stress

Assuming Tresca or maximum shear stress as the failure criteria, compute the

safety factor

If the linear spring has the spring rate of $10k\frac{N}{m},$ compute the net deformation of that spring

NOTE: All locations must be identified in coordinates by assuming origin of the coordinate system

at a suitable location. Unstretched length of spring is $100$ mm $.$