Our topic is on encounter and what it is. So what is abrasion? clash is the ââ¬Å"evilââ¬Â of both motion. No matter which direction an fountainhead perishs in, crash will pull it the some other way. give the sack something right, friction pulls it left. Move something up, friction pulls it down. rubbing depends partly on the suavity of the contacting surfaces, a greater rend being required to move two surfaces past wholeness a nonher if they atomic number 18 restive than if they atomic number 18 peaceful. Although two objects might look smooth, microscopically, theyââ¬â¢re genuinely stony and jagged. However, friction decreases with smoothness only to a definite degree. encounter 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 arena that are 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 everyplace a horizontal surface, it presses down against the surface with a force advert to its burthen. An increase in the weight of the body creates much resistance, so there is more friction. Friction is not all bad. It has a distribute do with life as we inhabit it on Earth.
Without friction, we wouldnââ¬â¢t be able to do a lot of the things that we invite to do. So why do we need friction? Itââ¬â¢s friction that enables us to walk, among other things. Friction is what keeps on e foot planted on the ground as the other on! e steps forward. Otherwise, without friction, the shift in weight would ca subprogram 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 renewal 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 pauperization to get a full essay, order it on our website: BestEssayCheap.com
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