1. The problem statement, all variables and given/known data I already searched for solution and i found similar one but i'm still confused. -In which point between Earth and Moon gravity field equals 0 if distance between moon and earth is 60.3 * radius Earth and mass of the earth is 81 * mass of the moon. 2. Relevant equations ɣ*M/(d-x)2 =ɣ*m/x2 3. The attempt at a solution O----------------------o M......(d-x).....|........x.......m consider this a sketch, (d-x) is distance between earth and that point, x is distance between moon and that point. M is mass of the earth, m is mass of the moon. M/(d-x)2=m/x2 81/(d-x)2=1/x2 81x2=(d-x)2 /root 9x=d-x 10x=d 10x=60.3Re (Radius of the earth) x=6.03Re not sure if i made mistake or my book author where he says it has 2 solutions and isn't near as simple as my answer.