The coefficient of friction is the ratio of the mechanical force causing a body to slide and the force (or component of a force) acting at right angles to the sliding surface. Both these quantities are measured in units of force such as Newtons. The ratio between two of the same thing is just a fraction such as half or a quarter. One force is a fraction of the other. The fraction is just a number and does not have dimensions.
In the equation M = 12 newtons/24 newtons, the coefficient M, is 0.5. The newtons cancel out.
The coefficient of friction, µf, is the ratio between the force acting on a body to the normal force(N), which is the magnitude of its weight but in an upward direction.
µf = F/N
Since both forces are expressed in Newtons, which are cancelled in the division, µf has no unit.
This coefficient of static friction is needed to find the frictional force between a body and a surface on which body has to move. If u (mu) is the coefficient of friction then uR gives the frictional force between moving body and surface. There is no unit for coefficient of friction. Here R is reaction which equals to the weight of the body
quality of the Surface is affected to the Coefficient of friction
You need two different materials to determine the coefficient of friction. Without another material you cannot know what the coefficient of friction is.
With what material? Coefficient of friction is for two materials.
The coefficient of friction is the same in this case.
No. Coefficient of friction is not measured in units.
The coefficient of friction is dimensionless.
[Simple Explanation]As friction is a force and the S.I. unit of force is Newton,the S.I. unit of friction is Newton.[Derivative Explanation]F=µN,where F is Frictional force,µ is coefficient of friction,and N is net normal reaction.N = -mgwhere mg is gravitational force whose SI unit is Newton.-(1)Coefficient of friction is dimensionless. -(2)From (1) and (2), SI unit of F = SI unit of N x SI unit of µ = NewtonHence SI of Friction is Newton.
This coefficient of static friction is needed to find the frictional force between a body and a surface on which body has to move. If u (mu) is the coefficient of friction then uR gives the frictional force between moving body and surface. There is no unit for coefficient of friction. Here R is reaction which equals to the weight of the body
A friction is a force, so it would be measured in newtons. The coefficient of friction, on the other hand, is a ratio between two forces, so it is dimensionless.
quality of the Surface is affected to the Coefficient of friction
The strength of the force of friction depends on the types of surfaces involved and on how hard the surfaces push together.
Limiting friction is just the maximum static friction force (if you go over that point static friction becomes kinetic friction).Let f = frictional force,c = coefficient of frictionN = Normal forcefmax = cN = limiting frictionAlthough the term coefficient of limiting friction is not really used, I'd assume it would just be "c" (it's a coefficient after all). So they would be the same.If you meant is coefficient of friction the same as limiting friction, than the answer is no. Coefficient of friction is just the "c" in the equation. Limiting friction however is the product of the coefficient and the normal force.
You need two different materials to determine the coefficient of friction. Without another material you cannot know what the coefficient of friction is.
Yes but make sure you are clear in your understanding between the coefficient of friction and the force of friction. The force of friction is the force that resists the motion of two surfaces moving against one another. The amount of friction is determined by the product of the coefficient of friction and the normal (perpendicular) force that is pressing the two surfaces together. The coefficient of friction is a unit-less constant, that indicates how two surfaces compare to two other surfaces that are being pressed together the same amount. If the normal force is the same on two pairs of surfaces the pair of surfaces with the lowest coefficient of friction will experience the lower force of friction.
The coefficient of friction is dimensionless; it has no units.
With what material? Coefficient of friction is for two materials.