Which statement about non-conservative forces is true?

  1. they store potential energy
  2. work done by them depends on the path and mechanical energy is not conserved
  3. they are path-independent
  4. they never do work
Answer

B) work done by them depends on the path and mechanical energy is not conserved

e.g. friction, drag, tension in a pushing hand. SLO P-11-B-31 · Understanding

Physics MCQ · More Work and Energy MCQs · Practise