A force rises uniformly from 0 to 30 N over 2 m and then stays at 30 N for another 2 m. The work done is:

  1. 30 J
  2. 120 J
  3. 90 J
  4. 60 J
Answer

C) 90 J

Triangle 30 J + rectangle 60 J = 90 J. SLO P-11-B-30 · Application

Physics MCQ · More Work and Energy MCQs · Practise