SEE ATTACHMENT #1 for a diagram showing parameters.
Find the distance between the c.m. (center of mass) of the system, and the point where the gravity field of the earth cancels that of the moon to produce zero field.
Recall that the gravity field of a body of mass M, exterior to its surface and at a distance r from its center, is toward the body, and is expressed by:
(1) g = G M / r^2 in which G is the universal constant 6.67 E -11 nt m^2 / kg^2
For the fields to cancel at a point x meters from Earth and d-x meters from the ...
In a step by step solution, the problem is explained and solved.