Friction is increased if
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Friction can be increased by increasing the roughness of the surfaces in contact. For example, treading of shoes and tires is done to increase friction. When friction is undesirable we have to reduce the friction. ... A substance that is introduced between two surfaces in contact, to reduce friction, is called a lubricant.
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Friction can be increased by increasing the roughness of the surfaces in contact. For example, treading of shoes and tires is done to increase friction. When friction is undesirable we have to reduce the friction. ... A substance that is introduced between two surfaces in contact, to reduce friction, is called a lubricant
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