Our topic is on encounter and what it is. So what is abrasion? crash is the ââ¬Å"evilââ¬Â of totally motion. No matter which direction an headway perishs in, crash will pull it the some other way. excise something right, friction pulls it left. Move something up, friction pulls it down. clank depends partly on the suavity of the contacting surfaces, a greater delineate being indispensable to move two surfaces past wholeness a nonher if they nuclear number 18 restive than if they atomic number 18 peaceful. Although two objects might look smooth, microscopically, theyââ¬â¢re genuinely restive and jagged. However, friction decreases with smoothness only to a definite degree. crash actually increases between two extremely smooth surfaces be former of increased attractive electrostatic forces between their atoms. brush does not depend on the amount of surface battlefield that be in contact between the moving bodies or on the relative speed of the bodies . What it does depend on though, is the order of magnitude of the forces prop the two bodies together. When a body is moving everywhere a horizontal surface, it presses down against the surface with a force advert to its saddle. An increase in the weight of the body creates to a greater extent resistance, so there is more friction. Friction is not all bad. It has a distribute do with life as we recognise it on Earth.
Without friction, we wouldnââ¬â¢t be able to do a lot of the things that we take in to do. So why do we need friction? Itââ¬â¢s friction that enables us to walk, among other things. Frictio n is what keeps one foot planted on the grou! nd as the other one steps forward. Otherwise, without friction, the shift in weight would ca habituate us to slide around. Also most braking systems use friction as their main component. When you squeeze the brakes on a 10-speed bike, a small rubber brake is press against some(prenominal) sides of the bike tire. The friction of the brake pad against the wheel causes the variation of the wheel to slow down to a stop. There are two types of friction, ââ¬Å"static frictionââ¬Â and ââ¬Å"kinetic frictionââ¬Â. Static...If you want to get a full essay, order it on our website: BestEssayCheap.com
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