farnoosh

if drop down an stone -that it is like a ball- into the slush and if it was soft enough, stone come into the slush in some distance, if throw it away from a certain height to comes into slush and if we want stone to come into slush 2 times more than befor...

the gravity that sun has on the moon is about 2 times more than the gravity from earth so why doesn't moon run away from earth to sun?