Can the resultant of 2 vectors be zero?

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Yes, when 2 vectors are same in magnitude but opposite in direction.

Yes, when the 2 vectors are same in magnitude and direction.

Yes, when 2 vectors are different in magnitude but opposite in direction.

Yes, when 2 vectors are same in magnitude making an angle of $\frac{2 π}{3}$ with each other.

answer is B.

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Detailed Solution

Resultant of 2 vectors can be zero only if they are of equal in magnitudes and opposite in directions.
$\bar{R} = \bar{a} - \bar{b} (If \bar{a} = \bar{b}) \Rightarrow \bar{R} = 0$

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