Answer:

Step-by-step explanation:
Given:
Angular speed

Radius of the solid sphere = R
Radius of the spherical shell, R' = 5.8R
now the initial moment of inertia i.e the moment of inertia of the solid sphere is given as:

where, M is the mass of the solid sphere
Now, the final moment of inertia i.e the moment of inertia of the spherical shell is given as:

or

or

Now applying the concept of conservation of angular momentum
we get

substituting the values, we get

or
