Equilibrium in 2D (AQA A-Level Mathematics): Flashcards

$\sum F_x = 0$

$\sum F_y = 0$

An object in equilibrium where all forces sum to zero

Same throughout the string

$\frac{1}{2}$

$\frac{\sqrt{3}}{2}$

$\sqrt{x^2 + y^2 + z^2}$

Sum of all force vectors equals zero vector

Identify all forces acting on the object

Use trigonometry (sine and cosine functions)