Introduction: Static and energizing encounter be issues that are a result of two surfaces in suffer with each other. Static friction is the forte that must be overcome to cause an aim to begin moving, while energizing friction occurs between two inclinations in motion congress to each other. The kinetic friction run, Ff, kinetic, is defined by Ff, kinetic = μkFN, where μk is the coefficient of kinetic friction and FN is the normal force performing on the object. The guckimum static frictional force 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 object. 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 argue the motion is equal 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 mess the coefficient of static and kinetic friction be determined for an object on a horizontal surface?
Materials: pulley, C-clamp, masking tape, wood surface, string, spring scale, 0-5 N, wood block
Procedure: For the procedure of this lab, please indicate to pages 136 and 137 in the physics textbook.
Observations / Analysis: The following four data tables show calculations 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
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