MCQ
How many minimum number of non-zero vectors in different planes can be added to give zero resultant
- A$2$
- B$3$
- ✓$4$
- D$5$
✓
Answer
Correct option: C.
$4$
c
(c) The required number of vectors is $4.$ suppose $A, B, C, D$ are four vectors and no three of them are coplaner. if the resultant of $\mathrm{A}$ and $\mathrm{B}$ be $\mathrm{X},$ and resultant of $\mathrm{C}$ and $\mathrm{D}$ be $\mathrm{Y}$. if $\mathrm{X},$ and $\mathrm{Y}$ be equal in magnitude but in opposing directions, that's the only way the resultant of $A, B, C, D$ be zero, without any three of them being in the same plane.
(c) The required number of vectors is $4.$ suppose $A, B, C, D$ are four vectors and no three of them are coplaner. if the resultant of $\mathrm{A}$ and $\mathrm{B}$ be $\mathrm{X},$ and resultant of $\mathrm{C}$ and $\mathrm{D}$ be $\mathrm{Y}$. if $\mathrm{X},$ and $\mathrm{Y}$ be equal in magnitude but in opposing directions, that's the only way the resultant of $A, B, C, D$ be zero, without any three of them being in the same plane.
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