Question

what is frictional force ?​

Answer 1

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: ... Dry friction is subdivided into static friction ("stiction") between non-moving surfaces, and kinetic friction between moving surfaces

Answer 2

Answer:

Hey mate

Here's your answer:

Explanation:

Frictional Forces - Tangential forces developed between the two surfaces in contact, so as to oppose their relative motion are known as frictional forces or commonly friction.

There are three types of frictional forces:

I) Static Frictional force-

The friction force points against the direction that the object would slide without friction. Static friction keeps gravity from pulling the cheese down the incline.

II) Kinetic Frictional force-

Kinetic friction is defined as a force that acts between moving surfaces. A body moving on the surface experiences a force in the opposite direction of its movement. The magnitude of the force will depend on the coefficient of kinetic friction between the two material.

III) Rolling frictional force-

rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc., is recovered when the pressure is removed.

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