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How does the coefficient of kinetic friction vary with the the area of contact between the block and he horizontal?
The coefficient of kinetic friction remains constant regardless of the area of contact between the block and the horizontal surface. It is a property of the materials in contact and does not depend on the surface area.
Does the frictional force depend on the area of surface contact?
No, the frictional force does not depend on the area of surface contact. It is primarily determined by the nature of the surfaces in contact and the normal force pressing the surfaces together. The coefficient of friction between the surfaces also plays a role in determining the magnitude of the frictional force.
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.
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.
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.
How does the coefficient of kinetic friction vary with the the area of contact between the block and he horizontal?
The coefficient of kinetic friction remains constant regardless of the area of contact between the block and the horizontal surface. It is a property of the materials in contact and does not depend on the surface area.
Is friction independent of the area of contact?
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.
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.
Does the frictional force depend on the area of surface contact?
No, the frictional force does not depend on the area of surface contact. It is primarily determined by the nature of the surfaces in contact and the normal force pressing the surfaces together. The coefficient of friction between the surfaces also plays a role in determining the magnitude of the frictional force.
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.
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.
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.
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
If friction isn't dependent on surface area but only on the coefficient of friction between two surfaces and the reaction force then why do racing cars use bigger tires with greater area?
Friction doesnt not depend on the surface area...but the force of friction does! We cannot change the friction of a material but we can change the force due to that friction on another material in contact with it. Using this concept, racing cars have bigger tires to minimise the force of friction acting on them. They cannot change the friction of the road, so they change the resultant force on the tires.
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.
Will a wider area create more friction?
Actually, contact surface area has absolutely nothing to do with friction. This is due to pressure that will equalize over any area. All that matters is the material of the two surfaces in contact.
