chaos
eworld
facts
get bent
physics

The Physics
Hypertextbook

Opus in profectus

… rolling
rotational-2d
coriolis …

Rotation in Two Dimensions

discussion
summary
practice
problems

Discussion

Precession and nutation

∑τ =	dL
	dt

Combinations of rotations are not commutative

discussion
summary
practice
problems

Rotation in Two Dimensions

… rolling
rotational-2d
coriolis …

The Physics Hypertextbook
©1998–2025 Glenn Elert
Author, Illustrator, Webmaster

No condition is permanent.

Mechanics
1. Kinematics
2. Dynamics I: Force
3. Energy
4. Dynamics II: Momentum
5. Rotational Motion
6. Planetary Motion
7. Periodic Motion
8. Fluids
Thermal Physics
1. Heat & Temperature
2. Calorimetry
3. Heat Transfer
4. Thermodynamics
Waves & Optics
1. Wave Phenomena
2. Sound
3. Physical Optics
4. Geometric Optics
Electricity & Magnetism
1. Electrostatics
2. Electrostatic Applications
3. Electric Current
4. DC Circuits
5. Magnetostatics
6. Magnetodynamics
7. AC Circuits
8. Electromagnetic Waves
Modern Physics
1. Relativity
2. Quanta
3. Wave Mechanics
4. Nuclear Physics
5. Particle Physics
Foundations
1. Units
2. Measurement
  1. Significant Digits
  2. Order of Magnitude
3. Graphs
4. Vectors
5. Reference
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