Q. 5

The earth resolves round the sun because the sun attract the earth. The sun also attracts the moon and this force is about twice as large as the attraction of the earth on the moon. Why does the moon not resolve round the sun? Or does it?

Answer :

The moon revolves around the earth, while the “earth-moon” system revolves around the sun. The sun’s gravitational force is balanced by the centripetal force on the system. The Earth’s gravitational force is balanced by the centripetal force of the moon around the earth.


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