A 480-Kg Car Moving at 14

question 25

Multiple Choice

A 480-kg car moving at 14.4 m/s hits from behind a 570-kg car moving at 13.3 m/s in the same direction.If the new speed of the heavier car is 14.0 m/s,what is the speed of the lighter car after the collision,assuming that any unbalanced forces on the system are negligibly small?

• A) 13.6 m/s
• B) 10.5 m/s
• C) 19.9 m/s
• D) 5.24 m/s

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Definitions:

Continuity Theory

A psychological theory suggesting that individuals tend to maintain consistent patterns of behavior, values, and identity over time, particularly through achievements and perspectives.

Social Circles

The groups of people with whom an individual regularly interacts and shares a sense of community.

Socioemotional Selectivity Theory

Theory, proposed by Carstensen, that people select social contacts on the basis of the changing relative importance of social interaction as a source of information, as an aid in developing and maintaining a self-concept, and as a source of emotional well-being.

Psychological Function

A generic term for processes related to the mind, such as thinking, perceiving, feeling, and behaving, that enable individuals to navigate and interpret the world.