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If the radius of the earth-shrinks by 2%...

If the radius of the earth-shrinks by 2% and its mass remain same, then calculate the value of g on the earth's surface.

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Calculate the value of ‘g' at height ‘h' from the earth’s surface.

Mass remaining constant , if the radius of the earth decreases by 1% what is the percentage change in acceleration due to gravity on the surface of the earth ?

Knowledge Check

  • Keeping the mass of the earth constant, if the radius of the earth is made 80% of its present value , the acceleration due to gravity on the earth's surface would

    A
    remain unchanged
    B
    decrease by 36% (approx.)
    C
    increase by 36% (approx.)
    D
    increase by 56% (approx.)

  • If the radius of the earth is R , the height above the surface of the earth where the acceleration due to gravity will be 1% of its value on the earth's surface is

    A
    8R
    B
    9R
    C
    10R
    D
    20R

  • If the earth is assumed to be a sphere of radius R, the height above the surface of the earth where the value of the acceleration due to gravity will be half its value on the earth's surface is

    A
    `h=R/2`
    B
    `h=R/sqrt(2)`
    C
    `h=(sqrt(2)+1)R`
    D
    `h=(sqrt(2)-1)R`

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    Mass remaining constant, if the radius of the earth decreases by 1% what is the percentage change in acceleration due to gravity on the surface of the earth?

    If the radius of earth is halved and the mass is same then what will be the change of its acceleration due to gravity.

    If the radius of the earth shrinks by1.5% then the value of acceleration due to gravity changes by

    If the present radius of the earth is doubled keeping the mass unchanged, how will the weight of a body on the surface of the earth change ?

    What is the escape velocity of a meteorite situated 1800 km above the surface of the earth? Given, the radius of the earth =6300 km and the acceleration due to gravity on the earth's surface =9.8m*s^(-2) .

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