Using Stokes' law, the drag on a sphere of radius 1 10^-5 m moving at 0.01 m/s through a fluid of viscosity 1.8 10^-5 Pa s is:

  1. 6.79 10^-11 N
  2. 1.8 10^-12 N
  3. 1.7 10^-11 N
  4. 3.39 10^-11 N
Answer

D) 3.39 10^-11 N

F = 6pieta rv = 3.39 10^-11 N. SLO P-11-B-42 · Understanding

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