Two Particles Interact by Conservative Forces

question 17

Multiple Choice

Two particles interact by conservative forces. This addition, an external force acts on each particle.. They complete round trips, ending at the points where they started. Which of the following must have the same values at the beginning and end of this trip?

• A) a total kinetic energy of the two-particle system
• B) the potential energy of the two-particle system
• C) the mechanical energy of the two-particle system
• D) the total linear momentum of the two-particle system
• E) none of the above

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Definitions:

Escalating Commitments

The phenomenon where individuals or organizations continue to invest time, money, or resources into a failing course of action due to the amount already invested.

Setting Limits

Establishing and enforcing rules or boundaries that govern acceptable behavior and actions.

Involvement

The degree of interest and personal relevance a person finds in a particular situation or activity.

Availability Heuristic

A mental shortcut that relies on immediate examples that come to mind when evaluating a specific topic, concept, method or decision.