The ratio of M.O.I of thin walled cylinder to M.O.I of solid sphere is _____?
The ratio of M.O.I of thin walled cylinder to M.O.I of solid sphere is _____?
Explanation
Let's denote the mass and radius of both objects as M and R, respectively.
For a thin-walled cylinder about its central axis, I_cylinder = MR².
For a solid sphere about its diameter, I_sphere = (2/5)MR².
The ratio is I_cylinder / I_sphere = MR² / ((2/5)MR²) = 5/2.