noun
- Action and reaction are equal and opposite.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). newton's third law of motion. Retrieved September 28, 2026, from http://smartdefine.org/newton%27s_third_law_of_motion/definitions/1297453 |
| Chicago | WordNet. 2010. "newton's third law of motion" http://smartdefine.org/newton%27s_third_law_of_motion/definitions/1297453 (accessed September 28, 2026). |
| Harvard | WordNet 2010, newton's third law of motion, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/newton%27s_third_law_of_motion/definitions/1297453>. |
| MLA | WordNet. "newton's third law of motion" 23 October 2010. Web. 28 September 2026. <http://smartdefine.org/newton%27s_third_law_of_motion/definitions/1297453> |