What is the Relation Between Linear and Rotational Speed?

[TBBTs]

Homework Statement

http://i.imgur.com/2Pi18.png

Homework Equations

The Attempt at a Solution

Sorry to say this, but I am completely clueless about these questions. I don't know how to start what to consider. Would anyone like to help me?

Thanks!

 

[tiny-tim]

Start with Question A.

Look at the two left-hand graphs …

what do they tell you about the relation between linear speed and rotational speed?

and what does that tell you about the moment of inertia ? ​