Answer
We can rank the disks according to the angular acceleration:
$2 \gt 1 \gt 3$
Work Step by Step
We can find a general expression for the angular acceleration $\alpha$:
$\tau = I~\alpha$
$\alpha = \frac{\tau}{I}$
Disk 1 and Disk 2 have a greater torque than Disk 3.
Disk 2 has a smaller rotational inertia than Disk 1 and Disk 3.
We can rank the disks according to the angular acceleration:
$2 \gt 1 \gt 3$
