Static Friction
Static friction is a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction.
force of static friction ≤ (coefficient of static friction)(normal force)
maximum force of static friction = (coefficient of static friction)(normal force)
\[F_{s} \leqslant \mu _{s} \eta \]
\[F_{s}^{max} = \mu _{s} \eta \]
Fs = force of static friction
μs = coefficient of static friction
η = normal force (Greek letter "eta")
≤ means "less than or equal to"
Fsmax = maximum force of static friction
let value of \[\mu _{s} \] = x and \[\eta = y \]
