A diamond-shaped body, of characteristic length 9 in, has the following measured
drag forces when placed in a wind tunnel at sea-level standard conditions:
V, ft/s: 30 38 48 56 61
F, lbf: 1.25 1.95 3.02 4.05 4.81
Use these data to predict the drag force of a similar 15-in diamond placed at similar orientation in 20°C water flowing at 2.2 m/s.