1.

If the vector \({\rm{\vec k}}\) and \({\rm{\vec A}}\) are parallel to each other, then what is \({\rm{\vec k}} \times {\rm{\vec A}}\) equal to?

A. \({{\rm{k}}^2}\overrightarrow {{\rm{A}}} \)
B. \(\vec 0\)
C. \(-{{\rm{k}}^2}\overrightarrow {{\rm{A}}} \)
D. \({\rm{\vec A}}\)
Answer» C. \(-{{\rm{k}}^2}\overrightarrow {{\rm{A}}} \)


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