MCQ
When $\vec{A} \cdot \vec{B}=-|A||B|$, then
- A$\vec{A}$ and $\vec{B}$ are perpendicular to each other
- B$\vec{A}$ and $\vec{B}$ act in the same direction
- ✓$\vec{A}$ and $\vec{B}$ act in the opposite direction
- D$\vec{A}$ and $\vec{B}$ can act in any direction