What Is the Difference in Work Needed to Push a 100

question 7

Multiple Choice

What is the difference in work needed to push a 100 kg crate (at constant speed) a distance of 2 m along an inclined plane that is at an angle of 20 degrees with the horizontal,if the coefficient of kinetic friction was equal to 0.20 or zero?

• A)670 N
• B)1040 N
• C)no difference
• D)370 N
• E)134 N

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Definitions:

Id

A concept in psychoanalytic theory representing the instinctual drives and primal impulses.

Defense Mechanism

Psychological strategies brought into play by the unconscious mind to manipulate, deny, or distort reality in order to defend against feelings of anxiety and unacceptable impulses.

Denial

A defense mechanism in which confrontation with a personal problem or with reality is avoided by denying the existence of the problem or reality.

Thematic Apperception Test (TAT)

A projective test consisting of drawings of ambiguous human situations, which the test taker describes; thought to reveal inner feelings, conflicts, and motives, which are projected onto the test materials.