Intro to Cross Product (Vector Product)
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(I) Show that (b) î x ĵ, = k̂ , î x k̂ , = - ĵ , and ĵ x k̂ = î .
(I) If vector A→ points along the negative x axis and vector B→ along the positive z axis, what is the direction of (a) A→ x B→ and (b) B→ x A→? (c) What is the magnitude of A→ x B→ and B→ x A→?
(I) The directions of vectors A → and B→ are given below for several cases. For each case, state the direction of A→ x B→ . (d) A→ points straight up, B→ points straight down.