A very heavy ball hits a light ball at rest elastically. The light ball moves off at about:

  1. zero
  2. half the speed
  3. the same speed
  4. twice the heavy ball's speed
Answer

D) twice the heavy ball's speed

v2 approx 2u1 when m1 gg m2. SLO P-11-B-12 · Application

Physics MCQ · More Momentum and Collisions MCQs · Practise