For a closed system, which statement is always true?

  1. Total momentum before = total momentum after
  2. Total KE before = total KE after
  3. Total speed is constant
  4. Each body keeps its momentum
Answer

A) Total momentum before = total momentum after

Momentum conservation is exact for a closed system. SLO P-11-B-13 · Application

Physics MCQ · More Momentum and Collisions MCQs · Practise