Coefficient of Friction - F = ma (Edexcel A-Level Mathematics): Quizzes

Resistive force

Dimensionless

$\mu = \frac{F_{\text{friction}}}{N}$

Starting the motion

Objects already in motion

$F_{\text{friction}} = \mu N$

$N = mg$

$F - F_{\text{friction}}$

$a = \frac{F - \mu mg}{m}$

$N = mg \cos \theta$

$mg \sin \theta$

$a = g(\sin \theta - \mu \cos \theta)$