4.9 A circular disc of radius R and thickness R/6 has moment of inertia I about...

Transcribed Image Text:

4.9 A circular disc of radius R and thickness R/6 has moment of inertia I about the axis perpendicular to the plane and passing through its centre. The disc is 4.2 Problems 139 melted and recasted into a solid sphere. Show that the moment of inertia of the sphere about its diameter is 1/5. 4.9 A circular disc of radius R and thickness R/6 has moment of inertia I about the axis perpendicular to the plane and passing through its centre. The disc is 4.2 Problems 139 melted and recasted into a solid sphere. Show that the moment of inertia of the sphere about its diameter is 1/5.