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Lecture 6 - Lecture 6 BME 3150 Friction D r E ttie n n e M...

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Dr. Ettienne-Modeste_BME 3150 Lecture Notes Lecture 6: BME 3150 Friction
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Dr. Ettienne-Modeste_BME 3150 Lecture Notes What is Friction? Frictional forces occur when two surfaces in contact slides against each other. Examples are: - a body in motion on a rough surface or - when an object moves in a fluid there is a resistance to motion b/c of the interaction of the body with its surroundings (i.e. a viscous medium such as water)
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Dr. Ettienne-Modeste_BME 3150 Lecture Notes Examples of friction - Unable to walk without frictional forces - Wheelchairs brakes, automobiles, and bicycles utilize friction principles. - Heat is generated as a cause of friction between surfaces in contact - Excess heat can cause failure in machine parts and friction can also cause wear.
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Dr. Ettienne-Modeste_BME 3150 Lecture Notes Factors influencing friction I. Friction depends on the nature of two sliding surfaces. - For example: if all conditions are the same for two surfaces, the friction between two metal surfaces would be different than the friction between two wood surfaces in contact.
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