Oblique Collisions with a Surface (Edexcel A-Level Further Mathematics): Flashcards

Into perpendicular and parallel components to the surface

Newton's law of restitution

No impulse acts in the parallel direction

$v_{\perp, \text{after}} = -e v_{\perp, \text{before}}$

$0 \leq e \leq 1$

$v_{\parallel, \text{after}} = v_{\parallel, \text{before}}$

$\Delta KE = \frac{1}{2}m(1 - e^2)v_{\perp,\text{before}}^2$

Only the perpendicular component

Only perpendicular to the surface

Reverses direction