For 10 points, name this force that comes in kinetic and static types, the latter of which prevents objects at rest from sliding.
This force acts in a non-linear manner in a paradox of rigid-body dynamics pointed out by Paul Painleve. The magnitude of this force is independent of the apparent area according to Amonton's second law. This force, which is naively modeled using atomic interactions in the Coulomb model, can be measured using a tribometer. This force is directly proportional and perpendicular to the normal contact force. For 10 points, name this force that comes in kinetic and static types, the latter of which prevents objects at rest from sliding.
This force acts in a non-linear manner in a paradox of rigid-body dynamics pointed out by Paul Painleve.
dry friction