Distance of the center of mass of a solid uniform cone from its vertex is $z{}_0$. If the radius of its base is $R$ and its height is $h$ then $z{}_0$ is equal to :
${{5h} \over 8}$
${{3{h^2}} \over {8R}}$
${{{h^2}} \over {4R}}$
${{3h} \over 4}$
Solution
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