Question $2$

$5\mathrm{.}31$

The figure below shows a two$-$reservoir water supply

system. The water level in reservoir $1$ drops at the

rate of $0\mathrm{.}01\frac{m}{m}in,$ and the water level in reservoir $2$

drops at the rate of $0\mathrm{.}015\frac{m}{m}in.$ Calculate the

average velocity $V_3$ in the $0\mathrm{.}50-$m$-$diameter pipe in

$\frac{m}{s}.$ Answer is $37\mathrm{.}8.$ Need work to get there