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

  1. -3
  2. -1
  3. 3
  4. 9
Answer

A) -3

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

Physics MCQ · More Vectors MCQs · Practise