Resultant Forces (Edexcel GCSE Physics Combined Science): Flashcards

Single force with same effect as all original forces together

$\text{larger force} - \text{smaller force}$

Add the forces together

Subtract smaller from larger

Air resistance and weight

No air resistance, only weight, resultant 833N down

Resultant = 483N down

When forces are equal and balanced

No acceleration

Resultant force is 0, constant speed

Forces and their directions acting on an object

Parallel and perpendicular components to ground

$F^2 = (F \cos \theta)^2 + (F \sin \theta)^2$