The centre of mass of the sun, earth, and moon system lies
within the sun
within the earth
between earth and sun
between earth and moon
The mass of the sun is very large as compared to that of earth and moon, therefore the centre of mass (CM) lies within the sun.
The moon moves around the earth in circular orbit and earth moves around the sun in an elliptical orbit. The Centre of mass of earth-moon system moves around the sun in
Compare the gravitational forces exerted by the sun and the moon on earth. Which exerts a greater force on earth ? (Given : mass of sun, Ms = 4∗1031 kg; mass of moon, Mm = 6.3∗1022 kg; distance between sun and earth, Rse=1.3∗1012 m and the distance between moon and earth, Rme= 4.5∗108m)
Compare the gravitational forces exerted by the Sun and the moon on the Earth. (Given: mass of the Sun, Ms=4×1031 kg, mass of moon, Mm=6.3×1022 kg, distance between the Sun and the Earth, r=1.3×1012 m and the distance between moon and the Earth, r=4.5×108 m).