MCQ
The angle between the two vectors $\vec{A}=5 \hat{i}+5 \hat{j}$ and $\vec{B}=5 \hat{i}-5 \hat{j}$ will be
- AZero
- B$45^{\circ}$
- ✓$90^{\circ}$
- D$180^{\circ}$
✓
Answer
Correct option: C.
$90^{\circ}$
(c) $\overrightarrow{ A } \cdot \overrightarrow{ B }=0 \therefore \theta=90^{\circ}$
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