This is the part of the book Calculus And Coordinate Geometry in 2D And 3D - exclusively about vectors, mechanics, analytical geometry of straight lines and planes both is 2 dimensions and 3 dimensions meant for +2 level course in CBSE ICSE and various other state boards/ councils in India and equivalent courses abroad. This is fundamental knowledge in the respective topics for taking preparatory course for IITJEE and other entrance exams. The celebrated coaching institutes impart only advanced preparatory module expecting prior knowledge of fundas. This is where the book fits in. Theough the Table of Contents is given for the full book, the chapters chosen are only involving the topics of vectors, deteminants, matrices, mechanics, and analytical geometry of two and three dimensions in respect of straightlunes and planes, treated both in vectors and without vectors