What seems odd to you about it?Amru123 said:Friction is independent of area of surfaces in contact as long as the normal reaction remains the same.I agree that it does not depend and so says it's formula but the condition that it does when the normal reaction remains same looks odd to me..Can someone help me out to understand this?
I can't see the connection between how the "remaining same of normal reaction" makes friction become dependant on "area"Chestermiller said:What seems odd to you about it?
Oh my god! You are misunderstanding my question.I was reading a book at a neighbourhood library when I came across this statement "Force is independent of area of surface of contact except when the normal reaction remains the same" Which clearly means normal reaction makes force become dependant.Do you get what I mean? If you don't believe in the statement I mentioned,Kindly look it up.It's true but I can't understand how it could be.Do help me gain some knowledge about it if you get to know it.Thanks in advanceChestermiller said:Who says that the friction force depends on the area?
Are you sure that's what you read? That's a puzzling statement.Amru123 said:was reading a book at a neighbourhood library when I came across this statement "Force is independent of area of surface of contact except when the normal reaction remains the same"
No. Is this the exact quote? Maybe there is an example problem associated with this?Amru123 said:Oh my god! You are misunderstanding my question.I was reading a book at a neighbourhood library when I came across this statement "Force is independent of area of surface of contact except when the normal reaction remains the same" Which clearly means normal reaction makes force become dependant.Do you get what I mean?
Amru123 said:Oh my god! You are misunderstanding my question.I was reading a book at a neighbourhood library when I came across this statement "Force is independent of area of surface of contact except when the normal reaction remains the same" Which clearly means normal reaction makes force become dependant.Do you get what I mean? If you don't believe in the statement I mentioned,Kindly look it up.It's true but I can't understand how it could be.Do help me gain some knowledge about it if you get to know it.Thanks in advance
Amru123 said:Friction is independent of area of surfaces in contact as long as the normal reaction remains the same.
Amru123 said:Friction is independent of area of surfaces in contact as long as the normal reaction remains the same.
Amru123 said:Force is independent of area of surface of contact except when the normal reaction remains the same
It's the former."as long as".Except is not right.Just now referred a website.Kindly bare my blunder.A.T. said:Which is it?
Friction independent of area refers to the concept that the amount of friction between two surfaces does not depend on the surface area in contact. This means that even if the surface area of contact is changed, the amount of friction remains the same.
Unlike other types of friction, such as static or rolling friction, friction independent of area does not change with the size or shape of the surface in contact. This is because it is caused by the interlocking of irregularities on the surface, rather than the amount of surface area in contact.
The main factors that affect friction independent of area are the nature of the surfaces in contact and the amount of force applied. Rougher surfaces tend to have higher friction independent of area, while smoother surfaces have lower friction independent of area. The amount of force applied also affects the magnitude of friction independent of area.
Friction independent of area is useful in many practical applications, such as in the design of brakes for vehicles or shoes for traction. Since it does not change with surface area, it allows for consistent and predictable frictional forces, which can be beneficial in ensuring safety and efficiency in various mechanical systems.
No, friction independent of area cannot be completely eliminated. However, its effects can be reduced by using smoother surfaces or lubricants to reduce the roughness of the surfaces in contact. In some cases, the use of anti-friction materials can also help to reduce the effects of friction independent of area.