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Why do you think the coefficient of friction varies so much for dry wood on dry wood?
Wiki User
∙ 13y ago
Different types of wood have different coefficients of friction. As dense, hard, wood will tend to be smoother than a porous, soft, wood.
Wiki User
∙ 13y ago
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The ratio of the resistance force to the effort force is called?
The ratio of resistance force to effort force is a mechanical advantage.
What is the coefficient of friction for bicycle tires?
twice as much as half of it!
How much work is done if a 10kg mass is moved 5 meters?
The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.
How much friction thick carpet produces?
It doesn't work that way - friction is not something that is "produced". The way it works is that you have a coefficient of friction for two surfaces that are in contact. Then you use that coefficient of friction, and multiply it by the normal force, to calculate the actual FORCE of friction.For the coefficient of friction, you need to specify a PAIR of substances; for example, carpet against glass would probably have less friction than carpet against rubber.
What does the coefficient of kinetic friction depend on?
The coefficient of friction is a scalar value with no dimension. It is simply a ratio of the force of friction between two objects, to the force pressing those objects together (often the normal force). Slippery surfaces have lower coefficient of friction than rough surfaces.
The ratio of the resistance force to the effort force is called?
The ratio of resistance force to effort force is a mechanical advantage.
What is the coefficient of friction for bicycle tires?
twice as much as half of it!
How much work is done if a 10kg mass is moved 5 meters?
The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.The work done is the force multiplied by the distance. You don't have the force in this case; if there is no friction, you would need zero work. If the mass moves is on a flat surface, multiply by the coefficient of friction to get the force required. The coefficient of friction varies for different combinations of materials.
How much friction thick carpet produces?
It doesn't work that way - friction is not something that is "produced". The way it works is that you have a coefficient of friction for two surfaces that are in contact. Then you use that coefficient of friction, and multiply it by the normal force, to calculate the actual FORCE of friction.For the coefficient of friction, you need to specify a PAIR of substances; for example, carpet against glass would probably have less friction than carpet against rubber.
What does the coefficient of kinetic friction depend on?
The coefficient of friction is a scalar value with no dimension. It is simply a ratio of the force of friction between two objects, to the force pressing those objects together (often the normal force). Slippery surfaces have lower coefficient of friction than rough surfaces.
How does sandpaper have so much friction?
The irregular sharp surface of Sandpaper will DEFORM the surface it moves over. The Deformation increases the Coefficient of Friction between the two surfaces.
Could you use wood for static friction?
Wood, or any other material, could be used to introduce static friction to a system. The choice of material(s) depends on how much static friction the system requires. Each material has its unique coefficient of friction.
How will the coefficients of friction vary if you place standard mass on top?
It won't. Coeffecient of friction is based on the two materials involved (or more, e.g., if a lubricant is used) not on the mass placed on top. We can specify a coefficient of friction for, say, rubber sliding across concrete without ever saying HOW MUCH rubber slides across concrete. If we want to know FORCE of friction, then this is a different story. The force is based on the mass that's on top. On a flat surface, the force of friction equals the coefficient of friction times the weight of the object being dragged. The mass you are talking about would be included in calculating the force, but not in determining the coefficient of friction.
How are fricition and force related?
Friction is a force and is the result of any force acting on a object. It is usually associated with two sliding objects or an object sliding across a plane. When a force is exerted on an object an opposing force is created by friction. The opposing force is equal to the exerted force until the exerted force exceeds the limiting friction. The limiting friction is determined by the coefficient of friction between the two surfaces and the "weight" of the object. To put it another way, imagine pushing a sheet of sandpaper across a rubber mat, which would have a high coefficient of friction. The weight of the sandpaper is minimal so the limiting friction is rather small. Now put a 5kg weight on the sandpaper and it becomes much more difficult to get the sandpaper to slide. Max friction = μ.N μ = coefficient of friction N = Normal force("weight")
What are all factors affecting frictional force?
Mass, the bearing surface (how much weight on what surface area), and a "coefficient of friction", a measure of how rough or smooth the surface is.
What is the coefficient of static friction for wood on paper?
It's not a matter of "how much" friction paper has. When talking about friction, you have a friction coefficient, which is determined by a lot of factors: Surface, surface area in contact, pressure applied, and more. There may be a formula out there to predetermine the friction two surfaces might have, but honestly just doing some tests yourself would be better. You also need to specify what kind of paper, because even "notebook paper" isn't specific enough, as I know different companies' paper feels different to the touch.
What is absorption coefficients?
The sound absorption coefficient indicates how much of the sound is absorbed in the actual material.The absorption coefficient can be expressed as:α = Ia / Ii ………………….. (1)whereIa = sound intensity absorbed (W/m2)Ii = incident sound intensity (W/m2)absorption coefficient of materials varies from 0 to 1
