Andy sets up an experiment with the goal of determining the coefficient of static friction between a wooden block and a wooden surface. He uses a spring scale to weigh a wooden block. He then places the block on a plane and inclines it until the block begins to slide. The angle of slip is recorded. Andy repeats the experiment using a variety of materials to cover the board. He recorded the data in a table. Andy did not distinguish between types of sandpaper. How would running two trials, one with fine sandpaper and another using coarse sandpaper, impact his results?
