Question
$A=3 \hat{i}+4 \hat{j}$ find a vector perpendicular to $\vec{A}$ in the plane of $\vec{A}$(A) $\hat{k}$(B) $-3 \hat{i}-4 \hat{j}$(C) $4 \hat{j}-3 \hat{i}$(D) $4 \hat{i}-3 \hat{j}$
Step 1
Step 1: Let's denote the vector perpendicular to $\vec{A}$ as $\vec{B} = x \hat{i} + y \hat{j}$, which is in the same plane as $\vec{A}$. Show more…
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