Find vecA vecB for vecA = 2hati + 3hatj and vecB = 4hati - hatj.

  1. 8
  2. 5
  3. -5
  4. 7
Answer

B) 5

vecA vecB = AxBx + AyBy + AzBz = (2)(4) + (3)(-1) + (0)(0) = 5. SLO P-11-B-02 · Understanding

Physics MCQ · More Vectors MCQs · Practise