(a) Determine the mass moment of inertia of an annular ring of mass M…

Previous year question for Structural Analysis-I.

Question

(a) Determine the mass moment of inertia of an annular ring of mass M and, of external and internal radii $R_1$ and $R_2$ about centroidal axis perpendicular to plane of paper.

(b) A hemisphere of diameter $60\text{mm}$ is placed on the top of a cylinder, whose diameter is also $60\text{mm}$, The height of the cylinder is $75\text{mm}$. Find the common C.G of the composite body.

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