NEET Physics Vectors NEET PYQ-Vectors

  • question_answer
    Six vectors \[\overset{\to }{\mathop{\mathbf{a}}}\,\] through \[\overset{\to }{\mathop{\mathbf{f}}}\,\] have the magnitudes and directions indicated in the figure. Which of the following statements is true? [AIPMT (S) 2010]

    A) \[\overset{\to }{\mathop{\mathbf{b}}}\,\,+\overset{\to }{\mathop{\mathbf{c}}}\,=\overset{\to }{\mathop{\mathbf{f}}}\,\]

    B) \[\overset{\to }{\mathop{\mathbf{d}}}\,\,+\overset{\to }{\mathop{\mathbf{c}}}\,=\overset{\to }{\mathop{\mathbf{f}}}\,\]       

    C) \[\overset{\to }{\mathop{\mathbf{d}}}\,\,+\overset{\to }{\mathop{\mathbf{e}}}\,=\overset{\to }{\mathop{\mathbf{f}}}\,\]

    D) \[\overset{\to }{\mathop{\mathbf{b}}}\,\,+\overset{\to }{\mathop{\mathbf{e}}}\,=\overset{\to }{\mathop{\mathbf{f}}}\,\]

    Correct Answer: C

    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 \[\therefore \]                  \[\overset{\to }{\mathop{\mathbf{d}}}\,+\overset{\to }{\mathop{\mathbf{e}}}\,=\overset{\to }{\mathop{\mathbf{f}}}\,\]


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