Problema Solution
The force of attraction between two bodies varies directly as the product of their weight and inversely as the square of the distance between them. Compare the attraction between Neptune weight 17 times as much as thet of Earth,but its distance from the sun is 30 times that of Earth.
Answer provided by our tutors
F1(sun and neptune) = M(sun) * M(neptune) / 30D^2
F2(earth and sun) = M(earth) * M(sun) / D^2
F1/F2 = M(n)/M(e)*900
= 17/900