Newton's 3 Law: Analyzing Equal & Opposite Forces

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SUMMARY

The discussion centers on Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. Participants debate the implications of this law during collisions, specifically questioning whether a change in velocity of the second object indicates a failure of equal and opposite forces. Key points include the acknowledgment that forces act simultaneously on both objects involved in a collision, leading to changes in momentum and velocity as dictated by Newton's Second Law. The conversation emphasizes the importance of understanding the simultaneous nature of action and reaction forces in collision scenarios.

PREREQUISITES
  • Understanding of Newton's Laws of Motion
  • Familiarity with concepts of force and momentum
  • Basic knowledge of collision mechanics
  • Ability to interpret vector notation in physics
NEXT STEPS
  • Study the relationship between impulse and momentum in collisions
  • Explore examples of elastic and inelastic collisions
  • Learn about the mathematical representation of forces using vector notation
  • Investigate real-world applications of Newton's Third Law in engineering
USEFUL FOR

Physics students, educators, and anyone interested in understanding the principles of motion and forces, particularly in the context of collisions and momentum changes.

  • #31
Let me try to set N3L into a much more comprehensive example.
Try pushing your finger on a pin. The force was exerted by you on the pin but you still feel pain as if there is a force acting on your finger from the pin(because that force really exists).
 
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  • #32
Thank you all for the comments. I'll keep in mind when I hit the book again.
 

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