In low speed, the object should experience stoke drag
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送交者: steven 于 2010-01-13, 12:45:07:
回答: 低速说不清楚，高速时空气阻力大。 由 JFF 于 2010-01-13, 11:41:10:
which is: F = 6\{pi}\eta r v. Where \eta is fluid viscosity and r is stokes radius. It can be treated as F proportional to the velocity.
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