Solution:

Shear Force: Shear Force at a section of a loaded beam is defined as the net or unbalanced vertical force on either side of the section.

Unit of shear Force: N or KN

Bending Moment: Bending moment at any section of the beam is all the algebraic summation of moments of all vertical forces on either side of the section, the moments being taken about the section.

Unit of bending moment: N-m or KN-m