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Published on: September 12, 2026
A vector is represented by 3\hat{i} + \hat{j} + 2\hat{k} . Its length in XY plane is
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Verified by ExpertsThe correct answer is:
C
\vec{R} = 3\hat{i} + \hat{j} + 2\hat{k}
\ \ Length in XY plane = \(\sqrt{R_x^2 + R_y^2} = \sqrt{3^2 + 1^2} = \sqrt{10}\)
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