Coefficient of Friction - Inclined Planes (Edexcel A-Level Mathematics): Flashcards

$\mu = \tan \theta$

Gravitational force ($mg$) and normal force ($R$)

Vertically downward

Perpendicular to slope surface

$mg \sin \theta$

$mg \cos \theta$

$F_{\text{max}} = \mu R$

$R = mg \cos \theta$

Opposes the direction of motion

$mg \sin \theta = \mu R$

When $mg \sin \theta > \mu R$

Angle $\theta$ where object starts to slide