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Generally no. The friction force is typically assumed independent of surface area, and proportional to the force between the two objects. By changing the contact area, you are changing how that force is concentrated. i.e. a small surface area means that your force is distributed across a small region, creating a high pressure (force/area) at the contact. By increasing the surface area, you distrubte that force and lower the pressure.
This is, however, an idealization and can break down in some instances.
What else can I help you with?
What is the effect of decreasing the surface area of the block in contact with the table on the coefficient of kinetic friction?
Decreasing the surface area in contact with the table will increase the pressure at that contact point. This can lead to an increase in the coefficient of kinetic friction, as the roughness at the microscopic level can become more significant.
Did isaac newton discover friction?
Several famous scientists and engineers contributed to our understanding of friction. They include Leonardo da Vinci, Guillaume Amontons, John Theophilus Desaguliers, Leonard Euler, and Charles-Augustin de Coulomb. Their findings are codified into these laws, 1. The force of friction is directly proportional to the applied load. (Amontons 1st Law) 2. The force of friction is independent of the apparent area of contact. (Amontons 2nd Law) 3. Kinetic friction is independent of the sliding velocity. (Coulomb's Law)
Why do large particles in a rock layer cause less friction?
Large particles have fewer points of contact with adjacent particles in a rock layer, leading to less interlocking and friction. Smaller particles, on the other hand, have more contact points, which can create more friction as they interlock more closely.
When the block of mass is increased is there an increase in the value of coefficient of kinetic friction?
No, increasing the mass of the block does not directly affect the coefficient of kinetic friction. The coefficient of kinetic friction depends on the nature of the surfaces in contact and does not change with mass.
What factors that affecting friction?
Friction actually depends on the roughness or smoothness of the surfaces of the object. Even some smooth objects that we usually see everyday (ex. glass, mirrorr,etc.) aren't that smooth when magnified by strong microscopes. They still have rough surfaces therefore they can also have friction. Factors that affect friction: 1.) Adhesion 2.) Surface roughness 3.)The area of an object which is in contact with the surface. The larger the surface in contact, the greater friction. 4.)The texture of the surface and/or the object. The rougher/more uneven the surface/object, the greater the friction. 5.) The weight on the surface. The larger the weight, the greater the friction 6.)The angle of the surface. The greater the angle of the surface, the greater the friction.
Does fluid friction vary with speed and area contact?
Fluid friction will vary with speed and the area of contact when referring to air friction or drag. When referring to surface friction then only the area of contact will vary.
What happened to the coefficients of friction as the surface area of the contact increases?
As the coefficient of friction is not function of the area or not related to the area of the contact surface so the coefficient of friction remains constant on the increase of the contact area. The coefficient of friction depends upon the material of the friction surfaces only.
Why sliding friction greater than rolling friction and if the area of contact is same?
The FORCE of Friction is INDEPENDENT of Surface Area. Only the 'Coefficient of Friction', and the Force between the two Surfaces. Sliding Friction is greater than Rolling Friction ONLY if the Coefficient of Friction is GREATER for the Sliding Surfaces.
Does friction depend on the area in contact?
Friction does not directly depend on the area in contact. It primarily depends on the nature of the materials in contact and the force pressing them together. While a larger contact area may provide more opportunities for friction to occur, it does not significantly affect the coefficient of friction between the surfaces.
What happened to the coefficients of friction as the surface area of the contact increased?
As the coefficient of friction is not function of the area or not related to the area of the contact surface so the coefficient of friction remains constant on the increase of the contact area. The coefficient of friction depends upon the material of the friction surfaces only.
What is the effect of decreasing the surface area of the block in contact with the table on the coefficient of kinetic friction?
Decreasing the surface area in contact with the table will increase the pressure at that contact point. This can lead to an increase in the coefficient of kinetic friction, as the roughness at the microscopic level can become more significant.
What is law of dry friction?
The generalized answer is: Friction is equal to the forces acting upon an object.I know only 2 laws of friction.....The first states that friction between two surfaces is proportional to the force pressing one another am assuming its normal force or the perpendicular force.The other states friction is independent of the contact area. That is, the friction is the same whether the brick is on its large face, the smaller side or the small end. Hope this is accurate.When an object is moving, the friction is proportional and perpendicular to the normal force (N)Friction is independent of the area of contact so long as there is an area of contact.The coefficient of static friction is slightly greater than the coefficient of kinetic friction.Within rather large limits, kinetic friction is independent of velocity.Friction depends upon the nature of the surfaces in contact.
How does the size of the contact area affect friction on an object?
A larger contact area results in increased friction as more surface molecules are in contact and therefore have the opportunity to interact. Conversely, a smaller contact area reduces friction because there are fewer surface molecules in contact, resulting in less interaction.
Why friction is independent of speed?
Friction is independent of speed because it is primarily caused by microscopic irregularities on the surfaces of objects coming into contact, rather than any motion-related factors. As long as the surfaces remain in contact, the level of friction will stay relatively constant regardless of the speed at which the objects are moving.
What is the 'Law of Solid friction?
The Law of Solid Friction states that the force of friction between two surfaces is proportional to the normal force pressing the surfaces together and is independent of the contact area between the surfaces. This law applies as long as the surfaces are not in relative motion.
How the textures of a surface affect friction?
The texture of a surface can affect friction by increasing or decreasing the contact area and interlocking of surfaces. Rough textures create more friction as they increase the contact area and interlocking between surfaces, while smooth textures reduce friction as they decrease contact area and interlocking. Irregular textures can also trap air pockets, reducing the amount of surface contact and friction.
Why kinetic friction is less than sliding friction?
there is more surface area contact with kinetic friction as opposed to sliding friction
