An 80-N Crate Slides with Constant Speed a Distance of 5.0

question 37

Multiple Choice

An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes an angle of 30° with the horizontal.The work done by the force of gravity is:

• A)-400 J
• B)-200 J
• C)-69 J
• D)200 J
• E)400 J

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Definitions:

Neurotic Need

Excessive, compulsive desires that occur in an individual due to psychological conflicts or anxieties.

Unconscious Forces

The underlying, often hidden, motivations and desires that influence thoughts, feelings, and behaviors, according to psychoanalytic theory.

Situational Variables

External factors or conditions that can influence the outcome of research or the behavior of individuals in a given context.

Erikson

Refers to Erik Erikson, a developmental psychologist known for his theory on the psychosocial stages of human development.