Answer to Question #317251 in Mechanics | Relativity for Euclid Allotey

Mechanics | Relativity

Question #317251

Determine vector A x C if A = 5i - 4j and B = 5i + 2j

Expert's answer

Answer

Vectors

A = 5i - 4j

B = 5i + 2j

Then

"A\\times B=\\begin{vmatrix}\n i & j & k\\\\\n 5 & -4 & 0\\\\5 &2&0\n\\end{vmatrix}"

="i(0) -j(0) +k(10+20) \\\\=30k"

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