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

question 115

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 exerted on it are the gravitational forces exerted by the other two balls? (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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