Further Forces & Newton's Laws (Edexcel A-Level Mathematics): Quizzes

The normal contact force

How rough the contact between objects is

$F \leq \mu R$

Opposes the driving force

$F_{max} = \mu R$

On the point of slipping

At its maximum value $F_{max}$

$8g$ N

$4g$ N

$F \leq \mu_s R$

At limiting equilibrium (point of slip)

$P \cos 60°$