Question

A metallic spherical particle of density 7001 kg/m³ and diameter 1 mm is settling steadily due to gravity in a stagnant gas of density 1 kg/m³ and viscosity $10^{-5}$ kg/(m·s). Take $g = 9.8$ m/s². Assume that the settling occurs in the regime where the drag coefficient $C_D$ is independent of the Reynolds number and equals 0.44. The terminal settling velocity of the particle, in m/s, rounded off to 2 decimal places, is _____.

Answer 1

The correct Answers is :14.40 or 14.60 Approx