Problem $3$

For the beam below:

a$)$ draw the influence lines for the support reactions as well as the shear at $\backslash ($ C $\backslash )$ using the equilibrium method:

b$)$ draw the influence lines for the shear immediately to the left of the internal hinge at $\backslash ($ B $\backslash )$ as well as the bending moment at C using the M$$ller$-$Breslau principle.

Note: dimensions are in meters.