A Mass M Is Located at the Origin; a Second

question 23

Multiple Choice

A mass m is located at the origin; a second mass m is at x = d. A third mass m is above the first two so the three masses form an equilateral triangle. What is the net gravitational force on the third mass?

• A) 2Gm²/d²
• B) Gm²/d²
• C) Gm²/d²
• D) Gm²/2d²
• E) Gm²/2d²

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Definitions:

Analogical

Pertaining to analogy; the process of finding correspondences or logical relations between seemingly dissimilar things.

Directed Thinking

Thought that is focused, goal-oriented, and follows logical steps towards a specific conclusion.

Mental Set

The perspective that a person takes and the assumptions he makes in approaching a problem.

Analogical Representation

A mental representation of one thing that is similar in some way to another; used in problem-solving and reasoning.