Water flows around the vertical two$-$dimensional bend with circular streamlines and

constant velocity as shown in the figure below. If the pressure is $50$ kPa at point $(1),$

determine the pressures at points $(2)$ and $(3).$ Assume that the velocity profile is

uniform as indicated.

Hint: Use the normal coordinate staring at point $O$ such that $d\frac{z}{d}n=1,$ and radius of

curvature $R=8-n.$