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What Are the Uses of Friction?

Answer

Friction is the force which resists the motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction which are the dry friction, fluid friction, lubricated friction, skin friction and internal friction.
5 Additional Answers
Some of the widely known uses of friction are walking, writing and driving. The three activities would never take place in the absence of friction. Friction introduces a resistance force slowing down or preventing motion to avoid slipping or sliding. However, friction has several disadvantages such as wastage of energy, production of heat in unnecessary parts, wearing thing out and others. A good compromise is necessary for friction to be productive in everyday activities.
Friction is the force resisting or opposing the relative motion of fluid layers, solid surfaces, and/or material elements sliding against each other. The work done by friction can be translated into wear, deformation, and heat that can affect the contact surface properties which help in times of polishing, breaking in a vehicle, walking, hitting objects and a lot of many things.
One use of friction is that it makes walking and running possible. Friction enables cars to move, facilitates writing as well as making fires. Friction is a resistance force that prevents or slows down motion and it is needed in many applications as illustrated above.
The word friction refers to the resistance which one object or surface encounters while moving over another. Friction can either be dry, lubricated and it occurs when two surfaces brush or rub against each other while in motion.
Friction is a force that slows motion and dampens energy and resists the movement of one object along another object.
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