Static friction can perform positive work when an object remains stationary relative to a surface while the surface moves. An example involves placing a pen on a sheet of paper and pulling the paper without moving the pen, demonstrating that the static friction between the pen and paper allows for movement without displacement of the pen itself. Another suggestion is to draw with the pen while moving the paper, which also illustrates static friction at work. The discussion highlights the concept that static friction can facilitate motion in certain scenarios without the object itself changing position. Understanding these principles can clarify how static friction contributes to work in practical applications.
