What Is the Difference Between Friction and Viscosity?

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Friction and viscosity are both forces that resist motion, but they differ in their contexts. Friction typically occurs between two solid surfaces, while viscosity involves the interaction between a solid and a fluid. For instance, an object sliding on a table encounters friction, whereas the same object moving through water experiences viscosity. Understanding these differences is crucial in physics and engineering applications. Both concepts play significant roles in motion resistance in various scenarios.
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]what is the difference between friction and viscoscity?
 
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They are roughly the same thing in that they can be described as forces that resist motion.With friction we normally refer to contact between two solids whereas with viscosity we refer to contact between a solid and a fluid.As an example,an object sliding along a table will experience a frictional resistive force but the same object falling through water will experience a viscous resistive force.
 

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