|
|
|
It seems that the graphs that I have presented shows a different story than what I thought was going to happen. I originally thought that the finer the grit, the easier the ice would slide. After performing this experiment, I have learned that the fine and harsh pieces of sandpaper have the same coefficients of friction. I believe this now, because it is logical. The rougher sandpaper consists of large and sharp "teeth" which "bit" into the ice chunk. As I progress toward the 150 and 220 sandpaper grits, I notice that the "teeth" are smaller, but the grits are just large enough that there are not enough to grab onto the ice per square inch, for example. Finally when I look at the highest grit, I notice that the grits are very small, but there are more of those grits per square inch. So, this means that there are more grits to come in contact with the surface of the ice and thus, it possesses a higher coefficient of friction. |