1. The problem statement, all variables and given/known data 3 single-point objects (M, m and m) forms an equilateral tri-angle with a 4th object in the middle. The sum of the gravitional force on the central object is 0. Represent the force of M in terms of m. Problem 2: In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you weigh 488 N, to the top of the building. 2. Relevant equations F = G*(Mm/r^2) = ma(gravity) a(gravity) = GM/r^2 3. The attempt at a solution 1. answer says M = m, and yes, it does make sense, but can someone show me 2. my answer was -0.231N, but Wileyplus says it's wrong.