Six vectors $\vec{a}$ through $\vec{f}$ have the magnitudes and directions indicated in the figure. Which of…

Six vectors $\vec{a}$ through $\vec{f}$ have the magnitudes and directions indicated in the figure. Which of the following statements is true?
  1. $\vec{b}+\vec{c}=\vec{f}$
  2. $\vec{d}+\vec{c}=\vec{f}$
  3. $\vec{d}+\vec{e}=\vec{f}$
  4. $\vec{b}+\vec{e}=\vec{f}$

Solution

If two non-zero vectors are represented by the two adjacent sides of a parallelogram, then the resultant is given by the diagonal of the parallelogram passing through the point of intersection of the two vectors $\therefore \quad \overrightarrow{\mathrm{d}}+\overrightarrow{\mathrm{e}}=\overrightarrow{\mathrm{f}}$

Asked in: NEET 2010 (Screening)

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