The course contents of the sixth edition of the book entitled Engineering Mechanics are planned in such a way that the book cover of complete course of first year Engineering students of all branches of Engineering. This edition has been throughly revised and made up-to-date. In the sixth edition, the following additions have been made: A chapter on Shear Force and Bending Moment has been added to meet the curriculum requirements of many universities. Polar moment of inertia, product of inertia, principal moment of inertia and mass moment of inertia have been added in Moment of inertia chapter Friction of Flat bearing, pivot bearing and collared bearing have been included in Friction chapter Collision of Elastic Bodies has been explained in more detail. The is written in a simple and easy to-follow language, so that even an average student can grasp the subject by self-study. At the end of each chapter, highlights, theoretical questions and many unsolved problems with answers are given for the students to solve them.