Why the coefficient of static friction increase when frictional force increase?

Answer 1

I think the best way to describe the answer is to describe how static works. If you rub your feet on a carpet, the frictional force causes the atoms gain more electrons, and less neutrons(or vice versa, I forget the order). When you touch a doorknob after, the knob and your body(via socks) are evening out the amount of neutrons and electrons originally present. So, in conclusion, the frictional force increases because the static friction is increasing from the distributing of neutrons/electrons. Lemme guess: Finals?

Answer 2

The coefficient of static friction is a measure of the maximum frictional force that can be generated between two surfaces before one starts sliding over the other. When the frictional force between the surfaces increases, it means that more force is required to overcome the static friction and initiate sliding. Therefore, the coefficient of static friction increases in order to reflect this increased resistance to motion.