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Question
How viscosity is different from the friction?
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Solution
Friction and viscosity refer to forces that oppose the motion.
Main difference
- friction is used to refer to forces that resist relative motion, in general,whereasviscosity refers specifically to resistive forces that occur between layers of a fluid when fluids attempt to flow. Therefore, the term “friction” can also refer to resistive forces between solid surfaces, or the resistive forces between solid and fluid surfaces.
- Viscous force depends on the velocity gradient and area of contact and frictional force independent of area of contact and relative velocity.
- Viscosity of liquid decrease with increase in temperature, Where as friction independent of temperature.
Friction and viscosity refer to forces that oppose the motion.
Main difference
- friction is used to refer to forces that resist relative motion, in general,whereasviscosity refers specifically to resistive forces that occur between layers of a fluid when fluids attempt to flow. Therefore, the term “friction” can also refer to resistive forces between solid surfaces, or the resistive forces between solid and fluid surfaces.
- Viscous force depends on the velocity gradient and area of contact and frictional force independent of area of contact and relative velocity.
- Viscosity of liquid decrease with increase in temperature, Where as friction independent of temperature.
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