What is Newton's Third Law of Motion?

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SUMMARY

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This principle is fundamental in understanding how forces interact between two different bodies. For instance, when a force is applied downward on a surface, the surface exerts an equal force upward. This law is crucial for students and professionals in physics and engineering to grasp the dynamics of motion and force interactions.

PREREQUISITES
  • Basic understanding of physics concepts
  • Familiarity with force and motion terminology
  • Knowledge of action-reaction pairs
  • Ability to interpret physical examples and diagrams
NEXT STEPS
  • Study the implications of Newton's Laws in real-world applications
  • Explore examples of action-reaction forces in various physical systems
  • Learn about the mathematical representation of forces in physics
  • Investigate how Newton's Third Law applies to engineering designs
USEFUL FOR

Students, educators, and professionals in physics, engineering, and related fields who seek to deepen their understanding of motion and force interactions.

badboyben03
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can someone explain to me Newton's thrid law of motion?
 
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Can you be more specific? I presume that you have a definition, so what needs clarifying? I know students find this Law hard to comprehend (or believe!) but basically if you push down on the desk, it pushes back up!

It can be explained in simple terms or more complicated ones - tell us more about your thoughts and problems...
 
It tells about Action- Reaction Forces

If there is an Action there will be an equal and opposite Reaction

And note these two acts on 2 different bodies
 

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