Mechanics is undoubtedly the most conceptual part of JEE Physics. In fact, the entire two year syllabus revolves around mechanics. While the exam paper has about 30% direct questions from mechanics, it is safe to assume that the paper also has another 30-35% questions indirectly involving mechanics. That’s a whopping 60-65% of the paper based on one single unit of Physics! Basically, what this means for you, the candidate, is that an absolute mastery over Mechanics is essential for a good rank. Also, keep in mind that mechanics CANNOT be mastered in a month… it needs about 8-10 months of rigorous practice to fully grab the concepts of mechanics. So, if initially, you cannot understand mechanics or solve its questions, don’t be disheartened. Most of the kids have trouble understanding mechanics.
The Essentials : Mechanics is basically divided into two parts – Dynamics (which deals with forces and stuff) and Kinematics(which deals with velocity, distance… motion of a body). The best way to understand mechanics is to start off with Laws of Motion and FBD (free body diagrams). This should ideally be followed by Kinematics, then Circular Motion, then Work-Power-Energy, then Centre of Mass & Collision, followed by Rotational Mechanics, Gravitation and finally, Fluids. This sequence helps optimize the time spent on understanding mechanics.
The Books needed : I would strongly advise all of the candidates to simply refer to two books on Mechanics.
The first book is H.C. Verma : Concepts of Physics Vol. 1. This book is the “Holy Grail” of JEE-Physics. Any serious candidate can not afford to overlook it. This book has a nice and concise theory which i would recommend all candidates to read. Direct theoretical questions can be framed in the JEE (they are often asked) and all the requisite theory is in this book. Make sure that you revise the theory of this book as much as possible. It will help you grab the marks from the theory questions asked in the exam. Additionally, reading theory is as important as practising questions. So, spend your time carefully reading theory from this book. Follow it up with the Solved Examples and then move on to the Exercises. Be sure not to omit the Objective Exercises… they are extremely important.
The second book is General Problems in Physics : I.E. Irodov. Mind you that this is not a book for everyone. Only those students should attempt this book who have sufficient confidence and skill in them. For the underconfident candidates, this book may prove to be harmful…in the sense that it can completely destroy your confidence. Full of tough problems, it also includes out of syllabus questions…Check my page on the Recommended questions of I.E. Irodov.