Which of the following statements is correct about the gravitational force between the earth and the moon?
1
Gravitational force is repulsive when the moon is far from the earth.
2
Gravitational force is repulsive and minimum when the moon is far from the earth.
3
Gravitational force is attractive and maximum when the moon is close to the earth.
4
Gravitational force is attractive and maximum when the moon is far from the earth.