4. U-Pipe Bend. Water (1.94-slug/ /ft3 density) flows through a horizontal, 180 pipe bend (L=30cm) as shown. The flow cross-sectional area is 0.1ft2 (constant). Flow velocity in the bend is 50ft/s. The absolute pressures at the entrance (1) and exit (2) of the bend are 30 psia and 24 psia, respectively. Determine the anchoring force required (magnitude and direction parallel to the "arrows" shown) to hold the bend in place. The atmospheric pressure is 14.7 psia. Ans. 1324lbf to the left