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..

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Answer 2

Answer:

friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.