Principles of statics, vectors, The free body diagram, definition of moment, couple moment, Planar forces, resultant of a force system, equations of equilibrium, Center of gravity, Supports, support reactions, statically determinate systems, Distributed loads, beams, Plane trusses and solution methods, Allowable stress, factor of safety, deformation, The torsion formula, power transmission, Shear and moment diagrams, the flexure formula, shear stress in beams, Plane stress transformation, general equations of plane stress transformation, The elastic curve, slope and displacement by integration method, Mohr’s circle.