The discussion revolves around finding the coefficient of static and kinetic friction for rubber on wood, specifically in the context of a homework assignment. The original poster expresses difficulty in locating this value and seeks assistance.
Some participants have provided links to resources that may contain relevant information. The conversation is ongoing, with various interpretations of the problem being explored, particularly regarding the characteristics of the materials involved.
The original poster mentions that the wood is not polished and describes it as a standard 2x4 from a hardware store, while the rubber is compared to a hockey puck. There is an emphasis on the need for a comparison value rather than a calculated one.
Thanks for your reply. I guess if there's a range out there somewhere I could go with that. It's not a value I'm required to calculate - he just wants us to use that number to compare with our experiment results. However I can't find a chart that has the coefficient of friction with those materials. The wood isn't polished - just like a 2x4 that came from home depot, and the rubber would be similar to a hockey puck.Charles Link said:How smooth is the wood? The number could vary dramatically depending on both the smoothness of the wood and the type and smoothness of the rubber.