Circular discs are to be made using iron and aluminium in order to acquire the maximum moment of inertia about the geometrical axis. What is the question?
1) What is the formula for calculating the moment of inertia of a circular disc?
2) How does the choice of material affect the moment of inertia of a circular disc?
3) What is the relationship between the mass and radius of a circular disc and its moment of inertia?
4) How can the moment of inertia of a circular disc be maximized?