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.
The law of dry 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. It is described by the equation (f = \mu N), where (f) is the force of friction, (\mu) is the coefficient of friction, and (N) is the normal force.
Basic properties of friction have been described as laws:
Amontons' 2nd Law is an idealization assuming perfectly rigid and inelastic materials. For example, wider tires on cars provide more traction than narrow tires for a given vehicle mass because of surface deformation of the tire.
hope this link will help
http://virtual.cvut.cz/cemlibmodules/SPaDzwepX43Jzg8w.html
Dry friction and fluid friction. Dry friction resists motion of two solid surfaces in contact, while fluid friction describes the friction between layers of liquid that are moving relative to each other.
Static friction
yes they do
When you rub a plastic comb against dry hair, friction causes electrons to transfer from the hair to the comb, giving the comb a negative charge and the hair a positive charge. This separation of charges creates static electricity.
If a water slide was dry, the lack of water would increase friction between the slide surface and any riders. This increased friction could make it more difficult for riders to move smoothly down the slide, potentially causing discomfort or slowing down their speed.
Fluid friction is the friction that occurs when an object moves through a fluid or gas.
When you rub a plastic comb against dry hair, friction causes electrons to transfer from the hair to the comb, giving the comb a negative charge and the hair a positive charge. This separation of charges creates static electricity.
frictionlaws of a dry
frictionlaws of a dry
Dry friction and fluid friction. Dry friction resists motion of two solid surfaces in contact, while fluid friction describes the friction between layers of liquid that are moving relative to each other.
dry frictionfluid frictionlubricated frictionskin friction
Where is Dry fritsion , There is no lubricant oil.
If a water slide was dry, the lack of water would increase friction between the slide surface and any riders. This increased friction could make it more difficult for riders to move smoothly down the slide, potentially causing discomfort or slowing down their speed.
The types of friction include static friction (prevents objects from moving), kinetic friction (opposes motion of objects sliding past each other), and rolling friction (resists the motion of objects rolling across a surface).
Dry Friction.Fluid Friction.Lubricated Friction.Skin Friction.Internal Friction.
Friction has no effect whatsoever on the law. But if friction is present, then the law can't be demonstrated, because the moving object always has an external force acting on it.
Static friction