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Dot product; Have units?

  1. Feb 19, 2004 #1
    Hi, I got a simple question, "dot product" have units?
    I mean, if A=(Ax+Ay+Az)N and B=(Bx+By+Bz)(cm/s) , the units of A.B will be N.(cm/s)
  2. jcsd
  3. Feb 19, 2004 #2
    \vec{A} \cdot \vec{B} = A_x B_x + A_y B_y + A_z B_z

    So clearly, the units of the dot product is the product of the units of A and the units of B.
  4. Feb 24, 2004 #3
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