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Acceleration due to gravity at a …

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Acceleration due to gravity at a depth reduce to 25% from the value at the surface. Calculate the value of depth if radius of earth is 6400km.

    • Posted by Manav Mahanta 7 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Naman Jain 7 years, 11 months ago

    As g'=g-(25/100)*g g'=(75/100)*g g'=(3/4)*g Now , g'=g(R-d)/R 3/4=(R-d)/R 3*R/4=R-d (3*R/4)-R=d d=(1/4)*R d=1600km

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