Question

Explain about the centre of mass of earth-moon system and its rotation around the sun.

Answer 1

The earth -moon system rotatesabout the common centre of mass. The mass of the earth is about 81 times that of the moon. ... The gravitational attraction of the sun is an external force that acts on the earth-moon system. The centre of mass of the earth-moon system moves in an elliptical path around the sun.


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Answer 2

Hello buddy,

◆ Answer- C.M. of earth moon system lies inside the earth.

◆ Explaination-
- It appears that moon revolves around earth, but the reality is both revolve around a common centre of mass.
- As the mass of the earth is lot bigger than that of the moon, centre of mass of the earth-moon system lie inside the earth.
- The centre of mass of the earth-moon system moves in an elliptical orbit around the sun.

Hope this is helpful.