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Write down Newton's law of gravitation....

Write down Newton's law of gravitation.

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Knowledge Check

  • Kepler's third law states that square of period of revolution (T) of a planet around the sun , is proportional to third power of average distance between sun and planet ? i.e., T^2=Kr^3 here K is constant. If the masses of sun and planet are M and m respectively, then as per Newton's law of gravitation, force of attraction between them is F=(GMm)/(r^2) here G is gravitational constant The relation between G and K is described as

    A
    `GK=4pi^2`
    B
    `GMK=4pi^2`
    C
    K=G
    D
    `K=1/G`

  • Newton's law of universal gravitation is F="G"(Mm)/r^2 Here F is the force of gravity, M and r is a length. Then the SI unit of the constant G is

    A
    `m^2/(kg-s^2)`
    B
    `m^3/(kg-s^2)`
    C
    `m^2/(kg^2-s)`
    D
    `m^3/(kg^2-s)`

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