Question

what is the cause of friction

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Answer 1

Answer:

Causes of Friction: Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.

Explanation:

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Answer 2

Answer:

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Explanation:

Friction is caused due to the irregularities of the surfaces in contact. The coefficient of friction depends on both the surfaces in contact. ... When the two surfaces are moved against each other these bonds resist the motion creating friction. Roughness of surfaces is also a reason for friction.

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