The Friction Law: F ≤ μR and Limiting Equilibrium
Understand static friction, limiting friction (F_max = μR), the coefficient of friction μ, and dynamic friction during sliding motion.

Understand static friction, limiting friction (F_max = μR), the coefficient of friction μ, and dynamic friction during sliding motion.
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11th Grade · Math · UK A-Level
8 lessons
Model friction using limiting friction F_max = μR, resolve forces parallel and perpendicular to inclined planes, and analyse limiting equilibrium.
[Understand and use Newton’s second law for motion in a straight line (restricted to forces in two perpendicular directions or simple cases of forces given as 2-D vectors)]; extend to situations where forces need to be resolved (restricted to 2 dimensions)
[Understand and use Newton’s third law; equilibrium of forces on a particle and motion in a straight line (restricted to forces in two perpendicular directions or simple cases of forces given as 2-D vectors); application to problems involving smooth pulleys and connected particles]; resolving forces in 2 dimensions; equilibrium of a particle under coplanar forces