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Vector Algebra — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsVector Algebra1 Mark
Question
If $\vec{a}$ is a vector and $m$ is a scalar quantity and $m \vec{a}=\overrightarrow{0}$ then what alternative values of $\vec{a}$ and $m$ are possible?
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Answer

Either $m=0$ or $\vec{a}=0$.

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