Three Identical Very Small 50-Kg Masses Are Held at the Corners

Multiple Choice

Three identical very small 50-kg masses are held at the corners of an equilateral triangle,0.30 m on each side.If one of the masses is released,what is its initial acceleration if the only forces acting on it are the gravitational forces due to the other two masses? (G = 6.67 × 10^-11 N ∙ m²/kg²)

A) 3.7 × 10^-8 m/s²
B) 2.5 × 10^-8 m/s²
C) 1.9 × 10^-8 m/s²
D) 4.2 × 10^-8 m/s²
E) 6.4 × 10^-8 m/s²