Net Work (Grade 12 NSC Matric Physical Sciences): Flashcards

Total work when multiple forces act simultaneously

Positive & negative work cancel out

$W_{net} = W_1 + W_2 + W_3 + ...$

$W_{net} = F_{net} \Delta x \cos \theta$

$W = F\Delta x \cos \theta$

Force increases energy/helps motion

Force decreases energy/opposes motion

Zero work

Scalar quantity

Yes, both are equivalent