Force of friction and Torque

[cc2hende]

Given a plot of Torque vs Angular acceleration, would it be valid to say that the slope of that line would be the Rotational inertia and the Y intercept to be equal to the force of friction?

I think there could be an argument for the Y intercept being the force or TORQUE due to friction. what do you think?

 

[Simon Bridge]

What would you use for your argument?

Ʃτ=Iα => τ-τ_f=Iα

rearrange and compare with y=mx+c