what do you mean by normal friction
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Friction and Normal Force. Part of the standard model of surface friction is the assumption that the frictional resistance force between two surfaces is proportional to the normal force pressing them together.
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Whenever two surfaces are in contact, They experience a contact force if they either slide or have a tendency to slide over one another.
This force is called frictional force. It is proportional to the normal force between the two surfaces, and always acts in opposition to the sliding tendency.
Frictional force is proportional to the normal force N
F = μμ N
where μμis the coefficient of friction between the two surfaces in contact
This force is called frictional force. It is proportional to the normal force between the two surfaces, and always acts in opposition to the sliding tendency.
Frictional force is proportional to the normal force N
F = μμ N
where μμis the coefficient of friction between the two surfaces in contact
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