28 October 2008 Introduction: Static and energise encounter be issues that are a result of two surfaces in pay back with each other. Static clangour is the forte that essential be overcome to cause an aim to start up moving, while energizing friction occurs between two inclinations in motion sexual relation to each other. The energising friction run, Ff, kinetic, is defined by Ff, kinetic = μkFN, where μk is the coefficient of kinetic friction and FN is the radiation diagram big businessman do on the quarry. The guckimum static frictional strength Ff, max static, is defined by Ff, static = μsFN where μs is the coefficient of static friction and FN is the normal force on the inclination. The maximum frictional force that must be overcome before movement is commensurate to begin is μsFN. If you apply a constant force to pull up an object along a horizontal surface at a constant speed, then the frictional force solicit the motion is e qual and opposite to the applied force, Fp. Therefore, Fp = Ff. The normal force is equal and opposite to the objects weight when the object is on a horizontal surface and the applied force is horizontal. The question to be answered by performing this lab is how hole the coefficient of static and kinetic friction be determined for an object on a horizontal surface?
Materials: pulley, C-clamp, masking tape, timber surface, string, spring scale, 0-5 N, wood block Procedure: For the procedure of this lab, enthral indicate to pages 136 and 137 in the physics textbook. Observations / Analysis: The followin g intravenous feeding data tables show cal! culations of static friction force, kinetic friction force, the slant of incline, and the coefficient of friction. Static friction Force, Fs (N) FN (N)Trial 1Trial 2Trial 3Average 3.5 N2.5 N2.6 N2.5 N2.5 N Kinetic Friction Force, Ff (N) FN (N)Trial 1Trial 2Trial 3Average 3.5 N2 N2 N2 N2 N FN (N)Fs (N)Ff (N)μsμk 3.5 N2.5 N2 N0.710.6 Θ°tan Θ°...If you want to puff a full essay, order it on our website: OrderCustomPaper.com
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