Procedure

We picked three different types of sneakers (running, basketball, walking, soccer, etc.) and put one of the sneakers on the triple beam balance. Then we added mass to the sneaker until the sneaker's mass was equal to 500g. We did the same for the other two sneakers. Then, we taped a paper clip firmly to the back of the first sneaker to measure the starting friction of that particular sneaker. After hooking the force meter/spring scale to the paper clip, we read the newtons side of it. When the sneaker starts to move, we recorded the force needed to overcome that friction(how many newtons it took for the sneaker to move). We did the same to the rest of the sneakers. When we finished doing this for all the sneakers we had, we taped the paper clip to the front of the sneaker and recorded the forward-stopping friction. We did the same thing you did with the starting friction. Then we finished doing this for the other sneakers. After taping the paper clip to the side of each of the sneaker to measure the sideways-stopping friction we recorded the newtons. That procedure was repeated for the other two sneakers. When done with collecting data, we made a data table and graph and analyzed our data.