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What is stock law |
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Answer» STOKE\'S LAW1. Body is smooth , small and moves slowly.2. Medium is Homogeneous and infinite.3. No slip btwn the body andfluid. F = 6πnrv Stokes Law\tThe force that retards a sphere moving through a viscous fluid is directly ∝to the velocity and the radius of the sphere, and the viscosity of the fluid.\tMathematically:-F =6πηrv where\tLet retarding force F∝v where v =velocity of the sphere F ∝ r where r=radius of the sphereF∝η where η=coefficient of viscosity6π=constantStokes law is applicable only to laminar flow of liquids.It is not applicable to turbulent law.\t\t |
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