Question

Define

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 a force that opposes the relative lateral motion of two solid surfaces in contact.

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Answer 2

Answer:

Friction is a resistant force that is produced when two surfaces touch each other while moving.

(eg:train gets affected by friction when moving because the wheels is touching the track while moving)

And friction is more in rough surface and less is smooth and slippery surface

Friction has 2 types:

Aerodynamic drag (air friction)

Hydrodynamic drag (water friction)

(I only know these 2 types)

Explanation:

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