A water spray gun is attached to a hose of cross sectional area \( 30 \, \text{cm}^2 \). The gun comprises of \( 10 \) perforations each of cross sectional area of \( 15 \, \text{mm}^2 \). If the water flows in the hose with the speed of \( 50 \, \text{cm/s} \), calculate the speed at which the water flows out from each perforation. (Neglect any edge effects)
