# physics

posted by
**Edwin**
.

water flows along a horizontal pipe of cross-sectional area 48cm^2 which has a constriction of cross-sectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the wider section is 1.0 x 10^5 Pa. Calculate pressure at the constriction. (density of water= 1000kg/m^3)