Question

Difference between viscous force and solid friction?

Answer 1

The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. Friction is due to resistance of relative motion between two solid surfaces whereas viscosity is due to cohesion or adhesion between two surfaces.

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Answer 2

Hi 

Here is your answer,

Viscous force:- 1) Viscous force is directly proportional to the area of layers in contact .

2) It is directly proportional to the relative between the two liquids layers.

3) It is independent of the normal reactions between the two liquid layers.

Solid Friction :- 1) Solid friction is independent of the area of the surfaces in contact.

2) It is independent of the relative velocity between two solid surfaces.

3) It is directly proportional to the normal reaction between the surfaces in contact.



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