In this article we are providing Handwritten Notes of System of Particles & Rotational Motion. This chapter includes
1.Centre of Mass Of two Particle System
Momentum conservation & Centre of Mass Motion. Centre of Mass of a rigid body. Centre of Mass Of a uniform rod.
Moment Of a force, Torque, Angular momentum, Law of conservation of Angular momentum and it’s applications. Equilibrium of Rigid bodies, Rigid body Rotation & Equation of Rotational Motion, Comparison of linear & Rotational Motions.
Moment Of Inertia, Radius of Gyration, Values of Moment of Inertia for simple geometrical objects ( No derivation)
PDF Part 1
Centre Of Mass Means a point where whole mass of body is suppose to be concentrated.
It depends on Shape & size of body.
C.O.M Of a system is independent of Choice of Coordinate system. Velocity of C. O. M remains Constant when total external force on system is zero.
Centre Of Gravity
Centre Of Gravity is a Point where weight of body acts. Centre of gravity coincides with centre of mass of a body.
M.O.I
Mass of a body is a measure of inertia of a body in linear motion. A quantity that measures inertia of Rotational motion is known as Rotational inertia or M. O. I
- Factors on which I depends
- Position of axis of Rotation
- Orientation of Axis of Rotation
- Shape Of Body
- Distribution Of mass of body about axis of Rotation.
PDF Part -2
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What is a rigid body?
A Rigid Body is that System of Particles in which mutual distance of Particles remain unchanged even by the application of external force to it. Due to internal forces among particles,the shape & size of rigid body remain unaffected,whatever external forces may be acting on Body.