How Do Newton's 3rd Law and Skating Illustrate Action-Reaction 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. In the context of a father and his daughter skating, when they push away from each other, they exert equal forces on one another. However, due to their differing masses, their accelerations will differ, as described by Newton's Second Law (F=ma). The father, being heavier, will experience less acceleration compared to his daughter.

PREREQUISITES
  • Understanding of Newton's Laws of Motion
  • Basic knowledge of force and acceleration concepts
  • Familiarity with mass and its effect on motion
  • Ability to apply mathematical equations related to physics
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  • Study the implications of Newton's Second Law (F=ma) in various scenarios
  • Explore real-world applications of action-reaction forces in sports
  • Investigate the differences in acceleration based on mass in practical examples
  • Learn about friction and its role in motion on ice surfaces
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This discussion is beneficial for physics students, educators, and anyone interested in understanding the practical applications of Newton's Laws in everyday situations, particularly in sports and motion dynamics.

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Homework Statement



A father and his seven year old daughter are facing each other on ice skates. With their hands they push away from each other. Compare the magnitude of the forces they each experience and comment on the acceleration of each of them.

Homework Equations



??

The Attempt at a Solution



Newtons third law??
 
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tim_mannire said:
Newtons third law??
Yes, that should help you answer the first part. Consider Newton's 2nd law to answer the second.

What do those laws state?
 

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