Question: Distance of the centre of mass of a solid uniform cone from its vertex is $z_{0}$. If the radius of its base is $\mathrm{R}$ and its height is $\mathrm{h}$ then $\mathrm{z}_{0}$ is equal to :-
$\frac{5 h}{8}$
$\frac{3 h^{2}}{8 R}$
$\frac{h^{2}}{4 R}$
$\frac{3 \mathrm{~h}}{4}$
Correct Option: , 4
Solution: