Question

What are the factors on which the coefficient of friction depends.

Answer 1

To answer this question, we first need to understand what friction is friction.Friction is the force that prevents solid surfaces, fluid layers, and material elements sliding against each other from moving in the same direction. Friction comes in a variety of forms: The force that opposes the relative lateral motion of two solid surfaces in contact is known as dry friction.

Complete answer:
Coefficient of friction: The ratio of the frictional force preventing motion of two surfaces in contact to the normal force pressing the two surfaces together is known as the coefficient of friction. The coefficient of friction is dimensionless since both F and N are measured in force units (newtons or pounds).

For static friction and kinetic friction, the coefficient of friction has distinct values. The frictional force opposes the force given to an object in static friction, and the object remains at rest until the static friction force is overcome.

The frictional force resists an object's motion in kinetic friction. The coefficient of kinetic friction for a brick sliding on a clean hardwood table is around 0.5, implying that a force equal to half the weight of the bricks is necessary only to overcome friction and maintain the bricks moving along at a constant pace, whereas the coefficient of static friction is about 0.6. The frictional force is directed in the opposite direction as the thing moves.

So, we conclude that the coefficient of kinetic friction should, in theory, be determined only by the nature of the surfaces. It is unaffected by any other considerations, such as the relative speed of the surfaces or the contact surface area. You will make the decision. The force of friction is studied by observing objects moving at a steady speed.

Note: By polishing the surface, friction can be minimized and the surface becomes smoother. Friction between surfaces can be reduced by using lubricants such as oil or grease. When things are rolled across a surface, ball bearings can reduce friction between the rolled object and the surface.