# Finding the angular acceleration knowing the net torque

1. Nov 2, 2011

### mrshappy0

1. The problem statement, all variables and given/known data
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.

2. Relevant equations
r= I*(ang.acc^)2

3. 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?

2. Nov 2, 2011

### rock.freak667

You mean T=Iα ?

3. 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.

3. Nov 2, 2011

### mrshappy0

ah yup. But the symbole is an r I thought. Is this correct?

Last edited: Nov 2, 2011