Question

what is frictional force.

kisi ko Mera friend karna ho to me ssage kare
I want a friend​

Answer 1

Answer:

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 (see Figure 1).

Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other.[3][4]

Answer 2

Explanation:

Frictional force refers to the force generated by two surfaces that contact and slide against each other. A few factors affecting the frictional force: These forces are mainly affected by the surface texture and the amount of force impelling them together.

The frictional force is said to be a contact force because frictional force occurs when two surfaces come in touch with each other. Example of frictional force is walking on the road. For frictional force to act, there should be a contact between the foot and the road. Therefore, it is known as a contact force.