A Physics Student Adds Two Displacement Vectors with Magnitudes of 8.0

question 19

Multiple Choice

A physics student adds two displacement vectors with magnitudes of 8.0 km and 6.0 km. Which one of the following statements is true concerning the magnitude of the resultant displacement?

• A)It must be 10.0 km.
• B)It must be 14.0 km.
• C)It could be equal to zero kilometers, depending on how the vectors are oriented.
• D)No conclusion can be reached without knowing the directions of the vectors.
• E)It could have any value between 2.0 km and 14.0 km depending on how the vectors are oriented.

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Definitions:

Incremental Theorists

Individuals who believe that their abilities and intelligence can grow and change through effort and experience.

Fixed

A characteristic, value, or condition that remains constant and unchanged across different situations or over time.

Stable

Referring to something that is not likely to change or move; in psychology, it may refer to consistent personality traits or conditions.

Internal Attributions

The process of attributing the cause of one's own or another's behavior to internal, personal characteristics rather than to external factors.