Phsyics

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Determine the magnitude and direction of the gravitational force exerted a) on the Moon by Earth and b) on Earth by Moon.

  • Phsyics -

    The forces are the same, but in opposite directions. The Earth pulls the moon and vice versa.

    The force is G*M*m/R^2
    G = universaL constant of gravity
    m = lunar mass
    M = Earth mass
    R = earth-moon separation

    The force also equals m*V^2/R
    where V is the velocity of the moon its orbit.

  • Phsyics -

    I did not get the answer...

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