1. Mechanics
    2. 1. Rotational dynamics
    2. Periodic motion
    3. Fluid statics
  2. Heat and Thermodynamics
    3. 4. First Law of Thermodynamics
    5. Second Law of Thermodynamics
  3. Waves and Optics
    4. 6. Wave motion
    7. Mechanical waves
    8. Waves in Pipes and Strings
    9. Acoustic Phenomenon
    10. Nature and Propagation of Light
    11. Interference
    12. Diffraction
    13. Polarization
  4. Electricity and Magnetism
    5. 14. Electrical Circuit
    15. Thermoelectric Effect
    16. Magnetic Field
    17. Magnetic Properties of Materials
    18. Electromagnetic Induction
    19. Alternating Current
  5. Modern Physics
    6. 20. Electrons
    21. Photons
    22. Semiconductor Devices
    23. Quantization of Energy
    24. Radioactive and Nuclear Reaction
    25. Recent trends in Physics
Mechanics
1. Rotational dynamics
EQUATIONS OF ANGULAR MOTION
Image 1
Fig. (a) A rigid body rotating about an axis through O.
(b) Angular displacement θ of the rigid body.
Relation between linear and angular kinetics
S.N.
Quantity
Relations
1.
Displacement:
s = \(\theta\)r
2.
Velocity
v = r \(\omega\)
3.
Acceleration
a = r \(\alpha\)
KINETIC ENERGY OF ROTATION OF RIGID BODY
Kinetic Energy of a Rolling Body
Acceleration of a Rolling body on an Inclined plane
MOMENT OF INERTIA
Radius of Gyration
Theorem of Parallel and Perpendicular Axes
CALCULATION OF MOMENT OF INERTIA OF RIGID BODIES
Thin Uniform Rod
Circular Ring
Thin Circular Disc
TORQUE AND ANGULAR ACCLERATION FOR A RIGID BODY
Relation between Torque and Moment of Inertia
WORK AND POWER IN ROTATIONAL MOTION
ANGULAR MOMENTUM
Relation between Angular Momentum and Moment of Inertia
Relation between Angular Momentum and Torque
Principle of Conservation of Angular Momentum

Multiple Choice Questions

1.

[NEB 2081]