A force vecF = 3hati + 4hatj N moves a body through vecd = 2hati + 1hatj m. The work done is:

  1. 14 J
  2. 5 J
  3. 11 J
  4. 10 J
Answer

D) 10 J

W = (3)(2) + (4)(1) = 10 J. SLO P-11-B-02 · Understanding

Physics MCQ · More Vectors MCQs · Practise