Newton’s Third Law
Reference from the original Physics I textbook.
- Newton’s Third Law
When object A exerts a force on object B, B exerts an equal-magnitude force in the opposite direction on A. These forces act on different objects.

- Related Glossary Terms
- Index
Reviewed physics notes (1)
These corrections keep the original lesson’s purpose while fixing errors in the source edition.
- Clarifies that third-law pairs are two forces on different objects. — Reference 1