Gravitational Force: Three Identical Very Small 50-Kg Masses Are Held

question 37

Multiple Choice

Gravitational force: 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

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Definitions:

Prefrontal Cortex

The front part of the frontal lobe of the brain, involved in complex behaviors such as planning, decision making, and moderating social behavior.

Reasoning

The process of thinking about something in a logical way in order to form a conclusion or judgment.

Decision Making

The cognitive process of selecting a course of action from among multiple alternatives.

Cerebrum

The largest part of the brain, responsible for voluntary muscular activity, vision, speech, taste, hearing, thought, and memory.