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JEE Mechanics

Mechanics is the unit with the highest weightage among all of physics and this is also because of the vast number of chapters that reside within. However, the most important chapter among all of mechanics is Rigid Body Dynamics, also known as Rotational Motion. Errors in Measurement, Work, Power & Energy and Centre of Mass have a fair share as well. The interesting aspect of mechanics is you can’t suddenly jump into a new chapter and learn it. The concepts of one chapter serve as the fundamentals of another. So, in a way, all the chapters work together. A total of 78 questions have been asked in the previous 10 years. Although vast in its syllabus, this is extremely important to strengthen the fundamentals of physics and can’t be ignored.

JEE Mechanics Chapter Wise Overview

Number of questions asked in each chapter of Mechanics from 2010 to 2020 in JEE

JEE Physics Chapter-wise weightage of Mechanics 2020

Let's find out the chapter-wise weightage of the most important unit Mechanics

Chapters Weightage
Units & Dimensions 5.33
Kinematics 1.67
Laws of Motion 2.67
Work, Energy & Power 3.67
Rotational Motion 6.33


List of important topics for JEE Mechanics

  • Error
  • Equations of motion
  • Relative motion
  • Projectile Motion
  • Circular motion
  • Common forces of Mechanics
  • Conservation of momentum & energy, and collisions
  • Potential energy of a spring
  • Moment of inertia
  • Rotational motion
  • Kepler's laws
  • Acceleration due to gravity
  • Satellites

Mechanics JEE Syllabus 2023, 2024

KINEMATICS ( Weightage 1.67%)
  • The frame of reference, motion in a straight line, Position- time graph, speed and velocity; Uniform and non-uniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity-time, position-time graph, relations for uniformly accelerated motion
  • Scalars and Vectors, Vector. Addition and subtraction, zero vector, scalar and vector products, Unit Vector, Resolution of a Vector. 
  • Relative Velocity, Motion in a plane 
  • Projectile Motion
  • Uniform Circular Motion.
LAWS OF MOTION ( Weightage 2.67%)
  • Force and inertia, Newton’s First law of motion, Momentum, Newton’s Second Law of motion, Impulses; Newton’s Third Law of motion. 
  • Law of conservation of linear momentum and its applications.
  • Equilibrium of concurrent forces.
  • Static and Kinetic friction, laws of friction, rolling friction.
  • Dynamics of uniform circular motion, centripetal force and its applications.
WORK, ENERGY AND POWER ( Weightage 3.67%)
  • Work done by a content force and a variable force;
  • Kinetic and potential energies 
  • Work-energy theorem
  • Power
  • The potential energy of spring
  • Conservation of mechanical energy, conservative and neoconservative forces;
  • Elastic and inelastic collisions in one and two dimensions.
ROTATIONAL MOTION ( Weightage 6.33%)
  • Centre of the mass of a two-particle system, Centre of the mass of a rigid body;
  • Basic concepts of rotational motion; a moment of a force; torque, angular momentum, conservation of angular momentum and its applications; the moment of inertia, the radius of gyration.
  • Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications. 
  • Rigid body rotation equations of rotational motion.
GRAVITATION ( Weightage 3.33%)
  • The universal law of gravitation.
  • Acceleration due to gravity and its variation with altitude and depth. 
  • Kepler’s law of planetary motion. 
  • Gravitational potential energy; gravitational potential.
  • Escape velocity, Orbital velocity of a satellite. 
  • Geostationary satellites.

Mechanics Video Lectures

Mechanics JEE Books

List of Chapters of Mechanics  
3-ERRORS Download
13-ROTATION Download

Mechanics JEE Test Series 2022,2023,2024

List of FREE Mechanics Tests  
Paper set 1 (Easy) Download Question set 1 Download Solution set 1
Paper set 2 (Moderate) Download Question set 2 Download Solution set 2
Paper set 3 (Difficult) Download Question set 3 Download Solution set 3

  • 1
  • 2


 A particle of mass  is subjected to an attraction central force of magnitude  being a constant. If at the instant when the particle is at an extreme position in its closed orbit, at a distance  from the centre of force, its speed is, if the distance of other extreme position is '' . Find   


The density of a newly discovered planet is twice that of the earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is  and the radius of the planet is ''. Then what is the value of ?   

Q. Is mechanics important for JEE mains??

Mechanics is the most important and one of the most most scoring topic in JEE Physics in terms of the number of questions asked in JEE of previous years. Some important topics in mechanics JEE are. Rigid body dynamics ( Rotation ), Center of mass, Projectile motion, Unit and dimensions, kinematics

Q. What are the best book for mechanics IIT JEE??

Concepts of Physics book by Hv Verma, Problems in General Physics Book by Igor Irodov, Fundamental laws of mechanics Book by Igor Irodov

Q. How can I master a JEE mechanic??

The most important part to start with mechanics is to clear with vectors and basic maths make your command in this chapter, you are half done, then start with Newton's Laws of Motion, Work Power Energy and Gravitation. Centre of Mass and Momentum. Most important Rotation. Now practice past year questions papers that will help you a lot

Q. Is Mechanics easy?

echanics is directly formulae based questions. It is a part of the 11th standard in NCERT, JEE asks 30% questions of mechanics from NCERT for the remaining 70% of mechanics questions you have to study separately for JEE. It is a topic you can correlate in real life and if you understand the basics clearly, it is one of the most scoring topics

Q. How many questions are asked from Mechanics in JEE?

A total of 78 questions have been asked in the previous 10 years. So about 7 to 8 questions is asked every year which is around 28-32 Marks

Q. Which are the important topics in mechanics?

Rotational Motion (Rigid Body Dynamics) 6.33, Work, Energy & Power 3.67, Kinematics 1.67, Laws of Motion 2.67.

Q. How to improve Mechanics?

Mechanics questions can be correlated with real-life try to understand what the questions are trying to say. Practicing more and more questions is the only method to improve mechanics

Q. Is HC Verma Enough for Mechanics?

C Verma has not been updated since 1984 so in today's scenario, it is not up to marks since all the questions in HC Verma is subjective and JEE is online and no subjective questions are asked anymore. So you need to update to the latest trends.

Q. Is NCERT enough for Mechanics?

30% of questions asked from Mechanics in JEE are from NCERT so you cannot skip it, but it is not enough to get rank for that you have to study separately for JEE. Ex In projectile motion NCERT is limited to just range and height while in JEE it asks for incline and middle of projectile also.

Q. Can I skip Mechanics?

28 to 32 Marks are asked from Mechanics every year and it is an easy topic to will, not advise you to skip it work on your concepts.

Q. Which are the easiest topics in Mechanics?

Unit and Dimensions, Laws of Motion, Work, Energy and gravitations are easy and 2 to 3 questions are asked from these topics every year