User:Salvomartello

The force of static friction is a force between two sufaces that prevents those surfaces from sliding or slipping across each other. Depends of what material is used, the coefficient of friction varieties, increasing or decreasing. The study conducted gave valid results and understanding of how PLA plastic and Aluminum slide against an aluminum and wood suface. The study consisted on letting the PLA plastic and aluminum block slide against the two sufaces and measuring the angle of when the two block started sliding down. This experiment was repeated five times for each surface in order to calculate the average which is the key to have accurate data, and reduce the possibility to have any human mistakes. Interestingly, the angle of inclination was recorded with an iphone as shown in the video description below. Link of the video