A solid cylinder of diameter D , length L , and density s falls due to gravity inside a
Chapter 1, Problem p1.59(choose chapter or problem)
A solid cylinder of diameter D , length L , and density s falls due to gravity inside a tube of diameter D0 . The clearance, D0 2 D ,, D , is fi lled with fl uid of density and viscosity . Neglect the air above and below the cylinder. Derive a formula for the terminal fall velocity of the cylinder. Apply your formula to the case of a steel cylinder, D 5 2 cm, D0 5 2.04 cm, L 5 15 cm, with a fi lm of SAE 30 oil at 20 8 C.
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