Newton’s Laws (VCE SSCE Physics): Flashcards

Object stays at rest/constant velocity unless unbalanced force acts

Body's ability to resist motion change; depends on mass

$F_{ ext{net}} = ma$

Vector sum of all forces on a body

Every action has equal and opposite reaction

Act on different bodies, not same object

$N = mg \cos \theta$

$F_{\text{ds}} = mg \sin \theta$

Perpendicular to the surface

Diagram showing magnitude and direction of all forces on body