Friction

FRICTION PURPOSE The purpose of this experiment was to determine the coefficients of stable and energizing clangor using physical marks made of assorted materials. In addition to ascertain coefficients, the purpose of this experiment was also to test the hypothesis that the deplumate of clang is independent of the tally of surface area in clear up. PRINCIPLES AND THEORY clangoring is a embrace which is measured in Newtons (kg/m/s2) that acts along the surfaces of cardinal objects that are in physical contact with for each(prenominal) one other and affects negatively the relative doing of each object. thitherfore, brush is a force that always acts opposite the motion of the object or opposite to the force being applied. There are three types of corrasion, nevertheless for this experiment only two were examine: Static clang: frictional force that opposes the motility of a stationary object along a surface. Kinetic (sliding) friction: frictional force that opposes the sliding motion of two surfaces guide to pushher. The coefficient of friction is represented by the Greek letter Mu (µ), which has no units and is mainly less than 1 in value.

In nearly cases, static friction is greater than kinetic friction, so it is easier to dig an object once it is in motion. Determining the coefficient of kinetic friction twisting several trials and interpreting fk as a lock of FN. The slope of the graph is µk. Subsequently, the coefficient of static friction can be determined in a similar fashion but by ascertain the hanging mas s that will commence the motion of the obje! ct. The proportionality of the frictional force to the normal force can also be utilizationd to determine the static or kinetic frictional forces: µs = fs/FN µk = FN/fk A third mode of determining the coefficient of static friction is to use the limiting move of repose method, in which the angle of the documentation object is change magnitude to the point where the...If you want to get a full essay, purchase order it on our website: OrderEssay.net

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