3. What is the cause of friction
Answers
Explanation:
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.[2] There are several types of friction:
Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction ("stiction") between non-moving surfaces, and kinetic friction between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities
Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other.
Figure 1: Simulated blocks with fractal rough surfaces, exhibiting static frictional interactions[1]
Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces.
Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body.
Internal friction is the force resisting motion between the elements making up a solid material while it undergoes deformation.
Answer:
Friction is caused due to the irregularities of the surfaces in contact. ... When the two surfaces are moved against each other these bonds resist the motion creating friction. Roughness of surfaces is also a reason for friction. No matter how smooth a surface looks, it has some irregularities.
Explanation:
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