Momentum (AQA A-Level Further Maths): Flashcards

Momentum equation and Newton's experimental law

Rate gap decreases between bodies before collision

Rate gap increases between bodies after collision

$\frac{\text{Speed of separation}}{\text{Speed of approach}} = e$

How elastic a collision is

$0 \le e \le 1$

Inelastic impact, no rebound occurs

Perfectly elastic impact, maximum rebound

Unchanged, momentum conserved (no friction)

Newton's law applies: $e = \frac{v_y}{u_y}$