No.
The two variables that affect friction are the surface roughness of the materials in contact and the force pressing the surfaces together. As the roughness increases or the force increases, friction typically increases as well.
The force acting on an object increases the friction between the object and the surface it is on. As the force increases, the friction force also increases proportionally until it reaches a maximum value, called the limiting friction. This relationship is described by the equation: friction force = coefficient of friction * normal force.
An example of viscous friction is the resistance experienced when moving an object through a fluid, such as air or water. This type of friction is proportional to the velocity of the object and the viscosity of the fluid it is moving through. An example could be stirring a thick liquid like honey, where the resistance increases as the speed of stirring increases.
Friction typically increases when the mass increases because there is more force pressing the surfaces together. However, the type of surfaces and the force pressing them together also affect friction levels.
Surface area
No. Friction is a function of Normal Force and the friction coefficient, nothing else.
the front boot of the car increases the friction on the car
It does not. It simply reduces some of its impacts. When iron or steel rusts the surface becomes rougher, which increases friction and prevents moving parts from working as they should. The oil provides lubrication, which decreases friction and restores normal function.
The two variables that affect friction are the surface roughness of the materials in contact and the force pressing the surfaces together. As the roughness increases or the force increases, friction typically increases as well.
The force acting on an object increases the friction between the object and the surface it is on. As the force increases, the friction force also increases proportionally until it reaches a maximum value, called the limiting friction. This relationship is described by the equation: friction force = coefficient of friction * normal force.
An example of viscous friction is the resistance experienced when moving an object through a fluid, such as air or water. This type of friction is proportional to the velocity of the object and the viscosity of the fluid it is moving through. An example could be stirring a thick liquid like honey, where the resistance increases as the speed of stirring increases.
With increased surface areas in contact, friction increases.
Friction typically increases when the mass increases because there is more force pressing the surfaces together. However, the type of surfaces and the force pressing them together also affect friction levels.
Surface area
Friction equals the coefficient of friction times the normal force. Friction increases as the roughness of the materials increases. It also increases as the force pushing the materials together increases.
As speed increases, the magnitude of fluid friction also increases. This is because at higher speeds, there is more interaction between the moving object and the fluid, resulting in greater resistance and friction.
The size of a friction force increases with an increase in the normal force pressing the surfaces together. It also increases with a rougher surface texture and an increase in the coefficient of friction between the surfaces.