Three equal masses are located on a coordinate grid so that the masses and the origin form a square with side length 3, as shown in the figure. Find the magnitude and direction of the gravitational field at the origin due to these masses. \\ I f m m l l : l | 7n.' (1 ' 6) Find the magnitude of the gravitational field at the origin due to these masses. (Use the following as necessary: m, {7, and G.) g: X