coefficient of static friction

for: an object on a solid surface, being prevented by friction from moving

is denoted: by [P2.3, P2.6]

is: the ratio of the magnitude of the maximum frictional force on the object before it moves, to the magnitude of the reaction force on the object. [P2.3, P2.6, P7.6]

depends: on the surfaces involved and their state of lubrication. [P2.3, P2.6]

is largely independent: of other factors, including the area of contact. [P2.3, P2.6]

usually is: larger than the coefficient of sliding friction [P2.3, P2.6]