Torque, Angular Momentum, and Conservation of Mass Problems

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SUMMARY

This discussion focuses on the challenges of solving problems related to torque, angular momentum, and conservation of mass in physics. The user seeks effective methods for approaching these problems, particularly in determining the optimal angle and force required to tip a block using a string. Key resources mentioned include lecture notes from St. Charles Preparatory School and MIT, which provide foundational knowledge but lack in-depth problem-solving strategies. The user emphasizes the need for better understanding relationships between equations in these topics.

PREREQUISITES
  • Understanding of basic physics concepts such as torque and angular momentum.
  • Familiarity with free-body diagrams and their application in problem-solving.
  • Knowledge of conservation laws, specifically conservation of mass and momentum.
  • Ability to interpret and analyze physics equations and their relationships.
NEXT STEPS
  • Research methods for solving torque problems, focusing on optimal angles and forces.
  • Study the relationship between angular momentum and torque through practical examples.
  • Explore resources that provide comprehensive problem-solving techniques in physics, such as "Fundamentals of Physics" by Halliday, Resnick, and Walker.
  • Learn how to effectively use free-body diagrams to analyze forces in static and dynamic systems.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone looking to deepen their understanding of torque, angular momentum, and conservation principles in mechanics.

TimeInquirer
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Homework Statement


I am studying the topics listed above and have been having great difficulty getting my problems going. To explain, I am having difficulty seeing where the problem should go and attacking in that direction. I can draw out free-body diagrams but I can't see how to solve the problem using them.

Example problem: A string is attached to a top edge of a block, and there is a pivot (or sufficient friction) to keep the block from sliding. At what angle should we pull so that we can use the least force to tip the block? How much force is required?

I am not looking for an answer but rather a method to approaching such problems that ask for general solutions to the topics listed above.

Lastly, and perhaps most importantly, finding relationships between equations is something need to work on. Any resources?

Homework Equations


Not sure if this applies to my question. If so, there are many.[/B]

The Attempt at a Solution



No Idea how to start[/B]
 
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Sorry, I'll be looking into it.
 
Last edited:
Thank you for your reply. Unfortunately, those links provided only little help. I have yet to find a book or resource that explains torque, angular momentum, or conservation of momentum (just noticed it is wrong in the title). They all just state the equations and define what they mean. Any book recommendations?
 
Angular and Linear momentum.
Angular momentum and torque.
https://www.stcharlesprep.org/01_parents/vandermeer_s/Useful%20Links/Honors%20Physics/pdf%20lectures/Torque.pdf.
http://web.mit.edu/8.01t/www/materials/modules/chapter19.pdf.
http://www.colorado.edu/physics/phys1110/phys1110_fa12/LectureNotes/LinearMomentum.pdf.
If you need anything else...Simply let me know. Pssst! (did I help?) ^_^
 
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Wow, if there is a god, he must be good for allowing me to live long enough to meet you. Your help is very much appreciated my good man.
 
Glad I helped (Acting like a gentleman)...Background: Feeling extremely good about myself helping others
 
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