what is friction and its causes?
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When one body makes an attempt to slide over another body, an opposing force called the force of friction arises as a reaction to the applied force, and acts in the opposite direction.
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.
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friction is contact and opposite force between two bodies . in simple words it is टकराव or रगड़.
it is caused due to the close contact and opposite force of two bodies
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