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

Resistive force

Dimensionless quantity

$\mu$

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

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

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$N = mg$

$F - \mu mg = ma$

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

$N = mg \cos \theta$

$F_{\text{friction}} = \mu mg \cos \theta$

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