Finding the angular acceleration knowing the net torque

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SUMMARY

The discussion focuses on calculating angular acceleration from net torque for a uniform disk subjected to multiple forces. The correct relationship to use is T = Iα, where T represents net torque, I is the moment of inertia, and α is angular acceleration. Participants confirm that substituting the net torque into this equation allows for the determination of angular acceleration. Clarifications were made regarding the symbols used in the equations, ensuring accurate application of the physics principles involved.

PREREQUISITES
  • Understanding of torque and its calculation
  • Familiarity with moment of inertia concepts
  • Knowledge of angular acceleration and its significance
  • Basic proficiency in algebra for solving equations
NEXT STEPS
  • Study the derivation and applications of the equation T = Iα
  • Explore the concept of moment of inertia for various shapes
  • Learn about the effects of multiple forces on torque
  • Investigate real-world applications of angular acceleration in mechanical systems
USEFUL FOR

Students in physics courses, particularly those studying mechanics, as well as educators and anyone interested in understanding the principles of rotational motion and dynamics.

mrshappy0
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Homework Statement


So I worked out a problem where a uniform disk with 3 forces being applied. I found the correct net torque acting on the disk. Now the problem is asking me to find the angular acceleration.

Homework Equations


r= I*(ang.acc^)2



The Attempt at a Solution



I made the assumption that you could use this formula. Plug the net torque in and calculate the moment of inertia and solve. Is this true?
 
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mrshappy0 said:

Homework Equations


r= I*(ang.acc^)2

You mean T=Iα ?


The Attempt at a Solution



I made the assumption that you could use this formula. Plug the net torque in and calculate the moment of inertia and solve. Is this true?[/QUOTE]

Yes this is what you essentially need to do.
 
ah yup. But the symbole is an r I thought. Is this correct?
 
Last edited:

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