Finding the angular acceleration knowing the net torque

AI Thread Summary
To find angular acceleration given net torque, the correct formula to use is T = Iα, where T is the net torque, I is the moment of inertia, and α is the angular acceleration. The initial assumption about using the formula r = I*(ang.acc)^2 is incorrect; it should focus on the relationship between torque and angular acceleration. After calculating the moment of inertia, the angular acceleration can be determined by rearranging the formula to α = T/I. Clarification was provided regarding the symbols used in the equations, emphasizing the importance of using T for torque. Understanding these relationships is crucial for solving problems involving rotational 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?
 
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