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Let A and B be the two vectors of magnitude 10 unit . If they are inclined to X-axis at angle 30 degree and 60 degree respectively. Find the resultant.

  • physics - ,

    x-axis components add up to
    10(cos30 + cos60) = 13.66

    y axis components add up to
    10(sin 30 + sin60) = 13.66

    resultant magnitude = 19.32

    The law of cosines could also have
    been used.

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