The Speed of a 4

question 8

Multiple Choice

The speed of a 4.0-kg object is given by v = (2t) m/s, where t is in s. At what rate is the resultant force on this object doing work at t = 1 s?

• A) 48 W
• B) 40 W
• C) 32 W
• D) 56 W
• E) 16 W

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Definitions:

Entity Theorists

Individuals who believe that traits such as intelligence and talent are fixed and cannot significantly change.

Incremental Theorists

Individuals who believe that personal attributes, such as intelligence or character, can be developed through effort and perseverance.

Athletic Skills

The physical abilities and talents that enhance performance in sports and physical activities.

American Athletes

Sportsmen and sportswomen from the United States who compete in various athletic disciplines at both amateur and professional levels.