Does the coefficient of friction change with normal force?

The coefficient of friction should in the majority of cases, remain constant no matter what your normal force is. When you apply a greater normal force, the frictional force increases, and your coefficient of friction stays the same.

What are some other objects that would have a low coefficient of friction?

The coefficient of friction depends on the materials used. As an example, ice on steel has a low coefficient of friction – the two materials slide past each other easily – while rubber on pavement has a high coefficient of friction – the materials do not slide past each other easily.

Does the coefficient of friction change with material?

No it does not change as the angle changes: the friction coefficient only depends on the nature of the materials in contact.

What happens if friction is greater than applied force?

Even frictional force can be equal and less than applied force. When frictional force is greater than equal to applied force then body will not move. When it will be less than applied force body will move.

How do you decrease the coefficient of friction?

There are several ways to reduce friction:

1. The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example.
2. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.

What surface has the lowest coefficient of friction?

PTFE has one of the lowest coefficients of friction of any solid. Polytetrafluoroethylene is used as a non-stick coating for pans and other cookware.

What affects coefficient friction?

The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies.

What happens when friction is less than applied force?

If the applied force to an object is less than the static friction, the object does not move. The applied force will be balanced by an equal and opposite static force.

Can friction be greater than force?

When the applied force is larger than the maximum force of static friction the object will move. When the applied force is greater than the maximum, static frictional force, the object moves but still experiences friction. This is called kinetic friction.