The Shear Force at the cut position, C$,$ is equal to the algebraic sum of the forces acting to the left and the right of C$.$

Calculate the support reactions RA and RB and calculate the theoretical Shear Force at the cut.

The Bending Moment at the cut position, C$,$ is equal to the algebraic sum of the moments caused by the forces acting to the left and the right of C$.$

Determine the value of RB for the calculation of the B$.$M$.$ at C since it will be easier to evaluate the bending moment with the

single value of RB than using W and RA to the left of C$.$

W$1=300$N$,$ a$=60$mm$.$