Three Identical 50-Kg Balls Are Held at the Corners of an Equilateral

question 47

Multiple Choice

Three identical 50-kg balls are held at the corners of an equilateral triangle,30 cm on each side.If one of the balls is released,what is the magnitude of 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

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