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Question

What is the value of a vector dot a vector?


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Solution

  1. The vector dot product equals the product of the magnitudes of the two vectors and the cosine of the angle between the two vectors. A.B=A.B.cosθ, here θ is the angle between two vectors A and B.
  2. The dot product of two vectors lies in the same plane as the two vectors.
  3. The dot product might be a positive or negative value, or it can be zero.
  4. Examples of dot product of vectors is Work done as Work(W)=F.dr, where F is the force and dr is the displacement.

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