Question

Friction is a force which results in the relative motion of the surface.
All types of surfaces like solid, liquid and air offer the force of friction.
Friction force always applies in the opposite direction of movement.
Friction is applied when two surfaces in contact move relatively to each other.
Examples:
A moving wheel on the ground stops after covering a certain distance because surface offers opposite direction friction to the surface of the wheel in motion.
After applying brakes to a moving bike, the surface of brakes offers friction to the surface of the moving wheel and the bicycle stops because of force of friction.
Gently push a book on a table. It stops after moving some distance because of friction between surface of book and table.
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Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

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