A Man Drags a 130-Kg Object Down an Inclined Plane

question 30

Multiple Choice

A man drags a 130-kg object down an inclined plane at a speed of 1.40 m/s. The coefficient of friction between the object and the inclined plane is 0.800 and the angle of inclination with the horizontal is 23.0°. What is the amount of power this man expends in dragging this object? Use g = 10.0 m/s².

• A) 1520 watts
• B) 1730 watts
• C) 629 watts
• D) 214 watts
• E) 416 watts

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Definitions:

Self-Fulfilling Prophecy

A prediction or expectation that causes itself to become true, due to the behavior of the person who holds the belief or those around them.

Criticizing

Expressing disapproval of someone or something based on perceived faults or mistakes.

Evaluating

The process of making judgments about the value, importance, or quality of something based on criteria and standards.

Primacy Effect

The tendency to remember information at the beginning of a list better than information in the middle or at the end.