A 0.05 kg body moves at 400 m/s. Its kinetic energy is:

  1. 10 J
  2. 4000 J
  3. 2000 J
  4. 8000 J
Answer

B) 4000 J

K = 12mv^2 = 12(0.05)(400)^2 = 4000 J. SLO P-11-B-29 · Application

Physics MCQ · More Work and Energy MCQs · Practise