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NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    The maximum and minimum magnitudes of the resultant of two vectors are 23 units and 7 units respectively. If these two vectors are acting at right angles to each other. The magnitude of their resultant will be:

    A)  14                              

    B)  15

    C)  16                              

    D)  17

    Correct Answer: D

    Solution :

    Given   \[P+Q=23\] \[P-Q=7\] \[2P=30\] \[P=15,\,Q=23-15=8\] If \[P\bot Q,\] \[R=\sqrt{{{P}^{2}}+{{Q}^{2}}}=\sqrt{225+64}=17\]


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