Friction

FRICTION PURPOSE The purpose of this experiment was to determine the coefficients of atmospheric quiet and energizing clangor using physical quarrys made of various(a) materials. In addition to ascertain coefficients, the purpose of this experiment was likewise to test the hypothesis that the deplumate of clang is independent of the amount of surface area in clear up. PRINCIPLES AND THEORY crash is a stick 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, encounter is a force that always acts opposite the motion of the object or opposite to the force being applied. There are three types of crash, precisely for this experiment only two were study: Static grinding: frictional force that opposes the motility of a stationary object alon g a surface. Kinetic (sliding) friction: frictional force that opposes the sliding motion of two surfaces abrasion to perk upher. 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 more or less cases, static friction is greater than kinetic friction, so it is easier to stir up an object once it is in motion. Determining the coefficient of kinetic friction twisting several trials and interpreting fk as a live of FN. The slope of the graph is µk. Subsequently, the coefficient of static friction can be determ! ined in a similar fashion but by ascertain the hanging mass that will develop the motion of the object. The proportionality of the frictional force to the normal force can also be delectationd 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 financial backing object is change magnitude to the point where the...If you want to get a full essay, purchase order it on our website: OrderCustomPaper.com

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