Which force creates the torque?

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SUMMARY

The discussion centers on the concept of torque and the distinction between internal and external forces in physics. It emphasizes that the classification of a force as internal or external is contingent upon the system being analyzed. Specifically, the internal force F12, generated by joint 1, raises questions about its ability to create torque, highlighting the importance of defining the system in question to understand the mechanics involved.

PREREQUISITES
  • Understanding of basic physics concepts, particularly torque and forces.
  • Familiarity with the definitions of internal and external forces.
  • Knowledge of system boundaries in mechanics.
  • Basic grasp of joint mechanics in physical systems.
NEXT STEPS
  • Explore the principles of torque in rotational dynamics.
  • Study the differences between internal and external forces in various physical systems.
  • Investigate how joint mechanics affect force distribution and torque generation.
  • Learn about system boundary definitions in classical mechanics.
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the principles of torque and force classification in physical systems.

EastWindBreaks
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Homework Statement


upload_2017-12-19_7-54-24.png


Homework Equations

The Attempt at a Solution


F12 is just an internal force caused by the joint 1 right? how can an internal force cause a torque?
 

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Whether a force is internal or external depends on what system you are considering. Which system are you considering?
 
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