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The gravitational force is always attrac...

The gravitational force is always attractive in nature. Why?

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Because of negative sign in equation `vec(F) = -(GM_(1)M_(2))/(r^2) hat^(r)` that the gravitational force is always attractive in nature and the direction of the force is along the line joining the two masses.
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Knowledge Check

  • The gravitational force is a _________ force.

    A
    mere
    B
    vast
    C
    central
    D
    rare

  • The electrosatic force is always greater in magnitude than gravitational force for _________object

    A
    bigger size
    B
    smaller size
    C
    medium size
    D
    all the above

  • The gravitational force of attraction between two objects is given by_______________.

    A
    `F alpha(m_(1)m_(2))/(d^(2))`
    B
    `F alpha(d^(2))/(m_(1)m_(2))`
    C
    `F alpha(m_(1)m_(2))/(sqrt(d^(2)))`
    D
    `F alpha(m_(1)m_(2))/(d^(3))`

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    Gravitational force is a___force.

    The Earth's gravitational force is always in the direction of the _______________ of the Earth.

    Is it true the reaction of as gravitational force is always grativational, of an electromagnetic force is always electromagnetic and so on?

    What is the effect of gravitational force of attraction acting on the person be indise the satellite and stand on moon?

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