Momentum (OCR GCSE Physics A (Gateway Science Suite)): Flashcards

Momentum

Zero

$p = m \times v$

$kg m/s$ or $kgms^{-1}$

Total momentum before = total momentum after

Yes, always conserved

Vector

Rate of change of momentum

$F = \frac{(mv - mu)}{t}$

Initial momentum

Final momentum

Cannon backwards momentum = cannonball forwards momentum