Question

What is friction explain??

Answer 1

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Friction is a resistance caused by a surface. It is a contact force that resists the relative motion between two surfaces. For example, when you stop pedaling a bicycle, it slows down and stops after some time. This is because of the frictional force.

Answer 2

Answer:

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. ... Friction always slows a moving object down. The amount of friction depends on the materials from which the two surfaces are made. The rougher the surface, the more friction is produced. Friction also produces heat.