if the gravitatinoal force of earth on moon is fthe gravitational force of moon on earth is
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The Earth's gravitational pull has quite an effect on the moon as well. ... As the moon's liquid core cools, it solidifies, and its volume decreases. The core contracts and the moon's solid crust “buckles,” forming the cracks. Since then, LRO has found over 3,000 more of these cracks. The equation doesn't discriminate between the two masses, so the force is the same for both. However, the acceleration of the two masses, a=F/m , can be different. In the case of the Earth and Moon, the Moon's acceleration is about 81 times greater than the Earth's, because the Moon has 81 times less mass. The greater an object's mass, the more gravitational force it exerts. So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. ... That's why the moon isn't pulled out of Earth's orbit by the gravity of larger planets or by the sun. The gravitational constant (G) = 6.67 x 10-11 Nm2 / Kg2 . The mass of the earth (m1) = 6.0 x 1024 Kg . The mass of the moon (m2) = 7.35 x 1022 Kg . The average distance from the center of the earth to the center of the moon is 384,400,000 m .