6-66 Water flowing steadily at a rate of 0.16 m/s is deflected downward by an angled elbow as shown in Fig. P666. For D = 30 cm, d = 10 cm, and h = 50 cm, determine the force acting on the flanges of the elbow and the angle its line of action makes with the horizontal. Take the internal vol- ume of the elbow to be 0.03 m and disregard the weight of the elbow material and the frictional effects. Flange D h Bolts 60 d FIGURE P6-66