This book covers all aspect of Dimension and Mechanics, Force and Friction, Rigid body and Centre of mass. By reading this book one can understand easily about units, measurement and dimensions. The Newton's law of motion and laws of friction will be known to individual and research scholar through this book. You all will be aware of functioning of Pulleys to complex machines by reading this book. In fact this book deals with every minute point of motion, measurement, Laws of motion in day to day life.