Question

moment of inertia of solid cylinder ???​

Answer 1

Answer:

The integral means you take the contribution r2dm of each of these tiny bit of matter to the total moment of inertia. The position (the value of r) of your element in a cylinder varies from the inner radius to the outer radius. If your cylinder is not hollow, this means your inner radius is zero.

Answer 2

Answer:

The integral means you take the contribution r2dm of each of these tiny bit of matter to the total moment of inertia. The position (the value of r) of your element in a cylinder varies from the inner radius to the outer radius. If your cylinder is not hollow, this means your inner radius is zero.

hope it helps you