Rotational Equilibrium and Dynamics

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SUMMARY

The forum discussion focuses on solving a physics lab project related to Rotational Equilibrium and Dynamics. Participants discuss how to calculate the weight of a meter stick using a known weight of approximately 0.1 kg. The method involves balancing the meter stick on a finger and applying torque equations to find the weight of the stick, ensuring that the axis of rotation is not at the ends or the center of the stick. The final calculations suggest that the weight of the meter stick is approximately 1.4715 N, equating to a mass of about 0.15 kg.

PREREQUISITES
  • Understanding of torque and rotational equilibrium principles
  • Familiarity with the concept of forces and their measurements
  • Basic knowledge of weight and mass relationships
  • Ability to apply mathematical equations to physical scenarios
NEXT STEPS
  • Research the principles of torque and how to calculate it in various scenarios
  • Learn about the conditions for static equilibrium in physics
  • Explore methods for measuring mass and weight accurately in lab settings
  • Investigate the effects of varying the axis of rotation on torque calculations
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Students studying physics, particularly those focusing on mechanics and rotational dynamics, as well as educators and lab instructors looking for practical applications of these concepts in classroom settings.

  • #31
Yes, thank you for your help. :)
 
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  • #32
Jasonn said:
Yes, thank you for your help. :)

You're welcome.

Hopefully, you now see the answer to your question "if I use 70 cm instead of 50 cm, I will get a different mass"...

The answer is that you don't get to pick the distance of the mass...The experiment will tell you that only one distance (for a given mass and a given position of the ruler on your finger) will keep the system at equilibrium.

godo luck!
 

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