Collisions (Grade 12 NSC Matric Physical Sciences): Flashcards

Collisions

Conservation of momentum

$m_1\vec{v}_{i1} + m_2\vec{v}_{i2} = m_1\vec{v}_{f1} + m_2\vec{v}_{f2}$

Both momentum & kinetic energy conserved

Separate cleanly

Momentum conserved, KE not conserved

To heat, sound, or deformation energy

Objects stick together, move with same velocity

Vector - direction matters

Elastic: p & KE; Inelastic: p only