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The resultant of two forces 3P …

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The resultant of two forces 3P and 2P is R, if first force is doubled, the resultant is doubled. Then the angle between the forces is:

    • Posted by Harish Kumar 7 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Miti Agrawal 7 years, 11 months ago

    r2=9p2+4p2+2.6p2cosθ....................1 4r2=(6p)2+4p2+2.12cosθ..................2 dividing 2 from 1 4=(36+4+24cosθ)/(9+4+12cosθ) 9+4+12cosθ=10+6cosθ 6cosθ=-3 cosθ=-0.5 θ=120degree

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