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SYLLABUS

UNIT-I

Introduction to Engg. Mechanics – Basic Concepts. Systems of Forces : Coplanar Concurrent Forces – Components in Space – Resultant – Moment of Force and its Applications – Couples and Resultant of Force Systems Friction : Introduction, limiting friction and impending motion, coulomb’s laws of dry friction, coefficient of friction, cone of friction.

UNIT-II

Equilibrium of Systems of Force: Free Body Diagrams, , Lami’s Theorm, Equations of Equilibrium of Coplanar Systems. Graphical method for the equilibrium, Triangle law of forces, converse of the law of polygon of forces condition of equilibrium, Equations of Equilibrium for Spatial System of forces, Numerical examples on spatial system of forces using vector approach, Analysis of plane trusses.

UNIT-III

Centroid: Centroids of simple figures (from basic principles) – Centroids of Composite Figures Centre of Gravity: Centre of gravity of simple body (from basic principles), centre of gravity of composite bodies, Pappus theorems. Area moments of Inertia: Definition – Polar moment of inertia, Transfer theorem, moments of inertia of composite figures. Products of Inertia. Transfer Formula for Product of Inertia. Mass Moment of Inertia: Moment of Inertia of Masses. Transfer Formula for Mass Moments of Inertia, mass moment of inertia of composite bodies.

UNIT-IV

Rectilinear and Curvilinear Motion of a Particle: Kinematics and Kinetics – Work Energy method and applications to particle motion – Impulse momentum method.

UNIT-V

Rigid Body Motion: Kinematics and kinetics of translation. Rotation about fixed axis and plane motion, Work Energy method and Impulse momentum method.