Question

The distance formula divided by the mass of an object, and then add the inertia

Answer 1

Eh not sure, you could ask Pooja (use this @ and type in a username)

Answer 2

@Cardinal_Carlo

Answer 3

For a hoop rolled down its axis of symmetry on a linear plane, we use this formula:
\[inertia = mass \times radius ^{2}\]
Or simply:\[I = mr ^{2}\]
So we just plug in our givens, like so:\[I = 0.25\left( 0.5 \right)^{2} = ~?\]
You get the rest @iwanttogotostanford