A tank with a small hole at the bottom has been filled with water and kerosene (specific gravity 0.8). The height of water is 3 m and that of…

A tank with a small hole at the bottom has been filled with water and kerosene (specific gravity $\displaystyle 0.8$). The height of water is $\displaystyle 3$ m and that of kerosene $\displaystyle 2$ m. When the hole is opened the velocity of fluid coming out from it is nearly : (take $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$ and density of water $\displaystyle =10^3 \mathrm{~kg} \mathrm{~m}^{-3}$ )