Q. 7.Q.17

The drag coefficient on a 6.3-in diameter sphere is 0.35. What is its velocity through a liquid with a SG = 0.79 if the drag force is 4.8 lb?

Verified Solution

$F=\frac{C_{D}\gamma AV^{2}}{2g} \\ V=\sqrt{\frac{4.8\times 2\times 32.2\times 4\times 12\times 12}{0.35\times 0.79\times 6.3\times 6.3\times 3.14\times 62.4}} \ ft/s=9.1 \ ft/s$