This is the derivation of moment of inertia of a solid cylinder about an axis through it's center and perpendicular to it's axis.  I understand the complete derivation but the line 
Moment of inertia of elementary disk about diameter AB = 1/4 × mass × radius² 
I don't understand why we have divided the mass by 1/4  please explain thoroughly. Step by step.

Asked by Varsneya Srinivas | 10th Oct, 2016, 07:42: PM

Expert Answer:

Answered by Romal Bhansali | 12th Oct, 2016, 09:33: AM