Question

two spheres each of mass M and radius R/2 are connected with the masses rod of length 2R .The moment of inertia of the system about an axis passing through the centre of one of the sphere and perpendicular to the axis is​

Answer 1

Answer:

any doubt msg me,I explained above in pic

Answer 2

Answer:

MI about yy1 = I I = (2/5) M(R / 2)2 + (2/5) M(R / 2)2 + M(2R)2

as MI of sphere = (2/5)MR2­

hence I = (4/5) M ∙ (R2 / 4) + 4R2M

= 4MR2[{1 / (20)} + 1]

= (21 / 5)MR2