NCERT Solutions for Class 11 Physics, Chapter 7 - System of Particles and Rotational Motion

In this chapter, you will learn about the motion of a rigid body, both translational and rotational. In rotational motion, the movement is defined by the maximum farthest point from the centre. Chapter 7 of the book, Physics Part-I, consists of the 14 sub-sections, wherein each section explains the various aspects of the chapter in details.

Let us take a look at the subtopics of Class 11 Physics, Chapter 7, System of Particles and Rotational Motion

7.1. Introduction

       7.1.1. What Kind Of Motion Can A Rigid Body Have?

7.2. Centre Of Mass

7.3. Motion Of Centre Of Mass

7.4. Linear Momentum Of A System Of Particles

7.5. Vector Product Of Two Vectors

       7.5.1. Definition Of Vector Product

7.6. Angular Velocity And Its Relation With Linear Velocity

       7.6.1. Angular Acceleration.

7.7. Torque And Angular Momentum

        7.7.1. Moment Of Force(Torque)

        7.7.2. Angular Momentum Of A Particle

        7.7.3. Torque And Angular Momentum For A System Of Particles

        7.7.4. Conservation Of Angular Momentum

7.8. Equilibrium Of A Rigid Body

        7.8.1. Principle Of Moments

        7.8.2. Centre Of Gravity

7.9. Moment Of Inertia

7.10. Theorems Of Perpendicular And Parallel Axis

         7.10.1. The Theorem Of Perpendicular Axes

         7.10.2. The Theorem Of Parallel Axes

7.11. Kinematics Of Rotational Motion About A Fixed Axis

7.12. Dynamics Of Rotational Motion About A Fixed Axis

          7.12.1. Work Is Done By A Torque

7.13. Angular Momentum In Case Of Rotation About Axis

         7.13.1. Conservation Of Angular Momentum

7.14. Rolling Motion

         7.14.1 Kinetic Energy Of Rolling Motion

In class 11 Physics, Chapter 7, you will learn:

Section 7.1: In this section, you will learn that a rigid body is one with a perfectly definite state of shape and is impervious to change in the distance between all the particles.

Section 7.2: In this section, you will learn that a rigid body with one end fixed can only have rotational motion. This fixed end is referred to as the centre of mass. Refer to Class 11 Physics Chapter 7 NCERT solutions for more information, here at UrbanPro.

Section 7.3: In this section, you will learn about the motion of a rigid body moving along a circular path. You can also refer to System of Particles and Rotational Motion Class 11 Derivations here at UrbanPro.

Section 7.4: In this section, you will learn that Newton’s 2nd Law of Motion can be derived from the equation to calculate and find the Total Momentum of a System of Particles.

Section 7.5: In this section, you will learn that the cross product of two vectors.  If these 2 Vectors are a and b, then axb= c = ab sinθ

Section 7.6: In this section, you will learn about instantaneous angular velocity and rotation of the angular velocity about a fixed axis.

Section 7.7: In this section, you will learn about both Torque and Angular Momentum are vector products. You also learn about the moment of force, and conservation of angular momentum for a single particle or a system of particles in this part of the chapter.

Section 7.8: In this section, you will learn the essential concepts like Principal of Moments, Centre of Gravity, etc., in this section of the chapter.

Section 7.9: In this section, you will learn about the moment of Inertia can be best described as a mass in the rotational system. The topic discusses the radius of gyration, Kinetic energy of a mass in rotational motion, flywheel, etc.

Section 7.10: In this section, you will learn that there are two essential theorems related to the moment of inertia- the theorems of the Perpendicular axis and the Parallel axis.

Find more information and accurate System of Particles and Rotational Motion Class 11 NCERT solutions only at UrbanPro. The solutions are also available for offline reading in the pdf version. Just download the NCERT Solutions for Class 11 Physics Chapter 7 Pdf.