JEE Exam > JEE Notes > Physics for JEE Main & Advanced > Rotational Motion & Moment of Inertia
Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced PDF Download
Rotational Motion
1. Rigid Body
Rigid body is defined as a system of particles in which distance between each pair of particles remains constant (with respect to time) that means the shape and size do not change, during the motion. Eg. Fan, Pen, Table, stone and so on.
Our body is not a rigid body, two blocks with a spring attached between them is also not a rigid body. For every pair of particles in a rigid body, there is no velocity of seperation or approach between the particles. In the figure shown velocities of A and B with respect to ground are 
and 
respectively
If the above body Is rigid
VA cos θ1 = VB cos θ2
Note : With respect to any particle of rigid body the motion of any other particle of that rigid body is circular.
VBA = relative velocity of B with respect to A.
1.1. Pure Translational Motion :
A body is said to be in pure translational motion if the displacement of each particle is same during any time interval however small or large. In this motion all the particles have same 
at an instant.
example.
A box is being pushed on a horizontal surface.
of any particle, 
of any particle
of any particle
For pure translational motion :-
Where m1, m2, m3, ......... are the masses of different particles of the body having accelerations 
respectively.
But acceleration of all the particles are same So, 
Where M = Total mass of the body
= acceleration of any particle or of centre of mass of body
Where m1, m2, m3 ...... are the masses of different particles of the body having velocities 
respectively
But velocities of all the particles are same so 
Where 
= velocity of any particle or of centre of mass of the body.
Total Kinetic Energy of body = 
1.2. Pure Rotational Motion :
A body is said to be in pure rotational motion if the perpendicular distance of each particle remains constant from a fixed line or point and do not move parallel to the line, and that line is known as axis of rotation. In this motion all the particles have same 
and at an instant. Eg. : - a rotating ceiling fan, arms of a clock.
For pure rotation motion :-
The document Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced is a part of the JEE Course Physics for JEE Main & Advanced.
All you need of JEE at this link: JEE
|
289 videos|635 docs|179 tests
|
FAQs on Rotational Motion & Moment of Inertia - Physics for JEE Main & Advanced
| 1. What is rotational motion and how does it differ from linear motion? |  |
Ans. Rotational motion refers to the movement of an object around an axis, while linear motion is the movement of an object along a straight line. In rotational motion, the object moves in a circular or curved path, while in linear motion, it moves in a straight path.
| 2. What is moment of inertia and how is it calculated? | |
Ans. Moment of inertia is a measure of an object's resistance to changes in its rotational motion. It depends on the mass distribution of the object and the axis of rotation. The moment of inertia of an object can be calculated by summing the products of each particle's mass and its squared distance from the axis of rotation.
| 3. How does the distribution of mass affect the moment of inertia? | |
Ans. The distribution of mass affects the moment of inertia by determining how the mass is spread out around the axis of rotation. Objects with more mass concentrated farther from the axis of rotation have a larger moment of inertia, while objects with more mass concentrated closer to the axis have a smaller moment of inertia.
| 4. What is the relationship between moment of inertia and rotational motion? | |
Ans. The moment of inertia plays a crucial role in determining an object's rotational motion. According to Newton's second law of rotational motion, the torque acting on an object is equal to the moment of inertia multiplied by the angular acceleration. Therefore, the moment of inertia affects how quickly or slowly an object rotates when a torque is applied.
| 5. How does the moment of inertia affect an object's stability? | |
Ans. The moment of inertia affects an object's stability by determining its resistance to changes in its rotational motion. Objects with larger moments of inertia are generally more stable since they require a larger external torque to change their rotational state. On the other hand, objects with smaller moments of inertia are less stable and can be easily rotated with less applied torque.
Related Exams
About this Document
|
2.3K Views |
|
4.83/5 Rating |
|
Dec 22, 2024 Last updated |
Document Description: Rotational Motion & Moment of Inertia for JEE 2024 is part of Physics for JEE Main & Advanced preparation.
The notes and questions for Rotational Motion & Moment of Inertia have been prepared according to the JEE exam syllabus. Information about Rotational Motion & Moment of Inertia covers topics
like and Rotational Motion & Moment of Inertia Example, for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Rotational Motion & Moment of Inertia.
Introduction of Rotational Motion & Moment of Inertia in English is available as part of our Physics for JEE Main & Advanced
for JEE & Rotational Motion & Moment of Inertia in Hindi for Physics for JEE Main & Advanced course.
Download more important topics related with notes, lectures and mock test series for JEE
Exam by signing up for free. JEE: Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced
Description
Full syllabus notes, lecture & questions for Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced - JEE | Plus excerises question with solution to help you revise complete syllabus for Physics for JEE Main & Advanced | Best notes, free PDF download
Information about Rotational Motion & Moment of Inertia
In this doc you can find the meaning of Rotational Motion & Moment of Inertia defined & explained in the simplest way possible. Besides explaining types of
Rotational Motion & Moment of Inertia theory, EduRev gives you an ample number of questions to practice Rotational Motion & Moment of Inertia tests, examples and also practice JEE
tests
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
shortcuts and tricks
,Previous Year Questions with Solutions
,practice quizzes
,mock tests for examination
,MCQs
,video lectures
,Sample Paper
,Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced
,Exam
,Important questions
,ppt
,Objective type Questions
,Semester Notes
,Viva Questions
,Free
,Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced
,past year papers
,Extra Questions
,Rotational Motion & Moment of Inertia | Physics for JEE Main & Advanced
,Summary
,study material
;
Additional Information about Rotational Motion & Moment of Inertia for JEE Preparation
Rotational Motion & Moment of Inertia Free PDF Download
The Rotational Motion & Moment of Inertia is an invaluable resource that delves deep into the core of the JEE exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Rotational Motion & Moment of Inertia now and kickstart your journey towards success in the JEE exam.
Importance of Rotational Motion & Moment of Inertia
The importance of Rotational Motion & Moment of Inertia cannot be overstated, especially for JEE aspirants.
This document holds the key to success in the JEE exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Rotational Motion & Moment of Inertia Notes
Rotational Motion & Moment of Inertia Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Rotational Motion & Moment of Inertia.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Rotational Motion & Moment of Inertia Notes on EduRev are your ultimate resource for success.
Rotational Motion & Moment of Inertia JEE Questions
The "Rotational Motion & Moment of Inertia JEE Questions" guide is a valuable resource for all aspiring students preparing for the
JEE exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Rotational Motion & Moment of Inertia on the App
Students of JEE can study Rotational Motion & Moment of Inertia alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Rotational Motion & Moment of Inertia,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Rotational Motion & Moment of Inertia is prepared as per the latest JEE syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup