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What happens when Coefficient of static friction of object and any surface is zero?
Wiki User
∙ 14y ago
I'd like to make this sound interesting, but the answer is that nothing happens. In the absence of forces that might move the object, it will just sit there. Static friction refers to friction between two objects that are not in relative motion. If your frictionless surface is a board and you tilt it, gravity will immediately cause the object to slide. If i put your object on my sandpaper-covered board, I'd probably almost have to tip it over to get the object to move.
Wiki User
∙ 14y ago
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On a flat surface the coefficient of friction is a ratio between and the weight of the object?
The force of friction!
Is friction affected by the amount of surface that is touching?
No: this is a common misconception Friction= Normal force* Coefficient of friction where Normal force= Mass* Acceleration due to gravity* Cos(angle of surface) and the coefficient of friction is an intrinsic property of the surface Therefore, only the mass of the object and the surface composition affect friction
What is Laws of Dynamic friction?
Simplified: The coefficient of dynamic (moving) friction, is derived from: > coefficient = force resisting motion (newtons) / force of object on surface (newtons)
Is it true that weight affects the amount of friction between the object and a surface?
Yes. Weight, being a force perpendicular to the surface, affects the magnitude of the friction, but not the friction coefficient.
What does the coefficient of static friction represent?
In free space or on a frictionless surface, it takes no force to move something. Where there is friction, the ratio of (force necessary to start it moving horizontally)/(the object's weight) is the coefficient of static friction on the horizontal surface.
On a flat surface the coefficient of friction is a ratio between and the weight of the object?
The force of friction!
Does the surface area of an object affect the amount of friction between the object and the surface?
No, it doesn't, the only important thing is the force perpendicular to the surface (weight) and friction coefficient.
Is friction affected by the amount of surface that is touching?
No: this is a common misconception Friction= Normal force* Coefficient of friction where Normal force= Mass* Acceleration due to gravity* Cos(angle of surface) and the coefficient of friction is an intrinsic property of the surface Therefore, only the mass of the object and the surface composition affect friction
What is Laws of Dynamic friction?
Simplified: The coefficient of dynamic (moving) friction, is derived from: > coefficient = force resisting motion (newtons) / force of object on surface (newtons)
Is it true that weight affects the amount of friction between the object and a surface?
Yes. Weight, being a force perpendicular to the surface, affects the magnitude of the friction, but not the friction coefficient.
Does the slant of an uneven surface create friction between the object and the surface?
What happens is gravity is pulling an object down, and if the surface it's resting on is slanted or uneven, there is a horizontal component to the force. That horizontal component attempts to move the object, however what CREATES the friction is the coefficient of kinetic friction (if the object is moving) or coefficient of static friction (if the object doesn't actually move) of the two surfaces. The two surfaces being the surface of the object that's touching the slanted surface and the slanted surface itself. These coefficients are determined by what the two surfaces are made of. Long story short, what CREATES the friction is the two materials touching each other. The slant just provides the force that attempts to move the object thus resulting in a visual representation of "friction."
What does the coefficient of static friction represent?
In free space or on a frictionless surface, it takes no force to move something. Where there is friction, the ratio of (force necessary to start it moving horizontally)/(the object's weight) is the coefficient of static friction on the horizontal surface.
An example of two surfaces that have a low coefficient of friction?
human joints are an excellent example. they have a static friction coefficient of .01 μs and a kinectic friction coefficient of .003 μkanother good example would be waxed wood on dry snow (as in a snowboard on a ski slope) this has a static friction coefficient of .04 μsHope this helped!
How are the force of friction and the force necessary to move an object related?
In any given case, friction can produce AT MOST a certain amount of friction; if the coefficient of friction is known, this can be calculated as the normal force multiplied by the coefficient of friction.The force necessary to move an object must, of course, be greater than this maximum friction.
What does 'co-efficient of friction' mean?
The amount of friction force that acts upon a body of mass depends on two factors: the property of the object and the normal force acting on the body. "Coefficient of friction" refers to the property of the material; in other words, the higher the coefficient of friction, larger the friction force is. The force of friction can be represented by this equation: FF = µFN. µ in this case represents the coefficient of friction. It can best be described as the numerical value that equates to the property of the object we are dealing with. µ does not have units; this reinforces the idea that it is just a numerical value that represents how "rough" or "smooth" the surface of an object is. Simply, the coefficient of friction is a way to describe, symbolically and numerically, how hard it is to move an object along a surface that the object is in contact with.
Investigate-how friction increases with increase of size of an object?
The force of friction on an object is equal to the coefficient of friction times the force perpendicular to the surface (normal force). When the mass of an object increases, the normal force increases, and the force of friction also increases. However, because the equation does not involve surface area, increasing surface area has no affect on the force of friction.
What factors that affect motion?
An object's motion is affected by the initial speed and acceleration and the forces that interact with it, the most important being: Gravity - that is affected by the gravitational constant g - which is affected by altitude; Air friction - that depends on the speed of the object and it's volume and air density; Surface friction - depends on the size of the surface of contact, the force that the object exerts on the surface, the surface and the object's coefficient of friction; All the above forces are proportional to the mass of the object.
