PHY 122 Chapter Notes -Standard Deviation, Emic And Etic, Friction
Document Summary
Lab 4: forces of friction and determining s and k. This experiment was performed in order to calculate the total frictional forces and to determine how the coefficients of friction were related and what the total forces of friction depended on. For part one, two masses were added to a block and the total friction over fifty trial runs was recorded by a force sensor. For part two, only one mass was added and only 30 trials were done. The calculated results for the coefficient of static friction were nearly identical for part one and part two. The result for part one determined the coefficient of static friction to be . 41 +/- . 07 and part two determined to be . 41 +/- . 08. The total coefficients for kinetic friction for both parts were very similar as well with part one determining the kinetic friction coefficient to be . 28 +/- . 05 newtons and part two . 28 +/- . 05 newtons.
