9.1 WP Assume that water flowing past the equilateral triangular bar shown in Fig. P9.1 produces the pressure distributions indicated. Determine the lift and drag on the bar and the corresponding lift and drag coefficients (based on frontal area). Neglect shear forces. p=-0.25 pU2 Linear distribution U = 5 ft/s 0.1 ft p = 0.5 pul b = length = 4 ft - FIGURE P9.1 Answer (a) 0.06 (pU/2); (b) 2.40
