Define friction. Define friction
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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.
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The force that resists the relative motion of surfaces is called Friction. Solid, liquid and air; all types of surface offer the force of friction.The force of friction always applies in the opposite direction of movement. Friction is applied when two surfaces in contact move relative to each other.
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