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An artificial satellite orbiting around the earth does not fall down.this is so because the attraction of earth a)does not exist at such distance b) is neutralised by the attraction of the moon c)provides the necessary speed for its steady motion d)provides the necessary acceleration for its motion
)

Hello friends,



All speed and distance of planets depend upon sun,this motion or ,movemernt of moon revolving around earth is state Kepler law of motion.

As distance increase from sun to earth and moon,the speed and gravity will increase.

As distance decrease from sun to earth and moon, the speed and gravity will decrease.

And also ,when the core heat increase inside the sun and earth ........ changes will occur in gravitational force of earth and in sun.

Gravity on earth = 9.80665 m / s2
Gravitational force on moon is 6 time lesser then earth,
Gravitational force on sun is 24 time higher then earth.

Thank you