Work: in the Figure, a Constant External Force P =

question 102

Multiple Choice

Work: In the figure, a constant external force P = 160 N is applied to a 20.0-kg box, which is on a rough horizontal surface. While the force pushes the box a distance of 8.00 m, the speed changes from 0.500 m/s to 2.60 m/s. The work done by friction during this process is closest to

• A) -1040 J
• B) +1110 J
• C) +1170 J
• D) +1040 J
• E) -1170 J

---

Definitions:

Self-Enhancement Motive

The desire to learn favorable or flattering things about the self.

Appraisal Motive

The simple desire to learn the truth about oneself, whatever it is

Automatic Egotism

Response by the automatic system that “everything good is me, and everything bad is not me”

Duplex Mind

The concept that the human mind operates on two levels: a conscious, rational level and an unconscious, automatic level, affecting human behavior and cognition.