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Experiment 6: Coefficient of FrictionLab ReportLab Partner: Nate
AbstractThe objective of this experiment was to measure static and kinetic friction in between wooden block and wooden surface with differents weights and inclination. To do this experiment a wooden block, wooden table, triple beam balance , inclined surface with inclination measures and a LabPro hardware and software was used. In part 1 coefficient of friction was found from slope of the graphs plotted from force VS the normal force for horizontal surfaces . In part 2 the the coefficient of friction was found from angle of repose and constant velocity. Primary sources of errors were from an in accurate weight measures, approximation of angle of inclination and non fluid motion for the block movement while dragging. Results PresentationCoefficient Pulling Method (Horizontal Plane)Sliding Method (Inclined Plane)% DiffStatic µs= 0.2929Angle of Repose →µs= tan(25) = 0.466337.18%Frictionµk= 0.2254Constant Velocity →µk= tan(14) = 0.24939.58%Force for constant v(Sliding of block)Part 2CalculatedMeasured% DiffF mean(Us)5.085 N5.320 N4.61%Sample Calculations + GraphsIN part 1:-