chaos
eworld
facts
get bent
physics

The Physics
Hypertextbook

Opus in profectus

… momentum-energy
momentum-2d
rotational-kinematics …

Momentum in Two Dimensions

discussion
summary
practice
problems

Discussion

Momentum keeps me going.

discussion
summary
practice
problems

Momentum in Two Dimensions

… momentum-energy
momentum-2d
rotational-kinematics …

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
Back matter
1. Preface
  1. About this book
2. Contact the author
  1. glennelert.us
  2. Behance
  3. Bluesky
  4. Google Scholar
  5. Instagram
  6. Threads
  7. YouTube
3. Affiliated websites
  1. hypertextbook.com
  2. midwoodscience.org
4. Stuff for sale
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