Hints to find coefficient of kinetic friction

1. Calculating for each individual value is a reasonable approximation for but this is one measurement which has random error (error which can be reduced by increasing the statistics, i.e., by repeating the measurement many times). In the “Acceleration due to Gravity” lab, did you get a better result for the acceleration due to gravity from the slope of v vs. t or from averaging the individual a-values?

2. Compare to . What should you plot as the ordinate (vertical axis) and as the abscissa (horizontal axis)? What property of the graph gives the coefficient of friction?