Conservation of Momentum (AQA A-Level Further Maths): Flashcards

$p = m\mathbf{v}$ (mass × velocity)

$\text{Impulse} = \mathbf{F}t$ (force × time)

Newton seconds (N s)

Change in momentum: $\mathbf{F}t = m\mathbf{v} - m\mathbf{u}$

$m_1u_1 + m_2u_2 = m_1v_1 + m_2v_2$

When no external forces act on the system

Bodies collide along their common line of travel

Two particles combine and move with common velocity

$m_1\mathbf{u}_1 + m_2\mathbf{u}_2 = (m_1 + m_2)\mathbf{v}$

Vector quantities (have magnitude and direction)