Amontons' Laws

Amontons' Laws describe how friction behaves between two surfaces. They state that the force of friction is directly proportional to the normal force (the pressing force) pushing the surfaces together, meaning more pressure results in more friction. The laws also specify that kinetic friction (sliding) is generally constant regardless of the sliding speed, and that static friction (initial resistance to starting movement) is usually greater than kinetic friction. These principles are fundamental in understanding how objects move and require force to start or continue motion across contact surfaces.