F = ma - Vector Notation (Edexcel A-Level Mathematics): Flashcards

$\mathbf{F} = m\mathbf{a}$

Force vector (in Newtons, $\text{N}$)

Mass of the object (in kg)

Acceleration vector (in $\text{m/s}^2$)

Vector quantities

Have both magnitude and direction

Same direction

Proportional to mass and acceleration magnitude

Multiple dimensions (2D or 3D)

Two separate equations

$F_x = m a_x$

$F_y = m a_y$

Three separate equations

Unknown quantities in 2D and 3D problems