A Ladder Leans Against a Wall

question 45

Multiple Choice

A ladder leans against a wall. If the ladder is not to slip, which one of the following must be true?

• A) The coefficient of friction between the ladder and the wall must not be zero
• B) The coefficient of friction between the ladder and the floor must not be zero
• C) Both A and B
• D) Either A or B
• E) Neither A nor B

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Definitions:

Hallucinations

Perceptions in the absence of external stimulus that have qualities of real perception, often seen in certain mental health conditions.

Poverty of Thought Content

A reduction in the quantity or quality of thoughts, characterized by speech that conveys little information due to vagueness or limited idea expression.

Loose Associations

A thought disorder characterized by disorganized thinking that jumps from one idea to another with little or no logical connection.

Delusion of Reference

A false belief that irrelevant occurrences or details in the world relate directly to oneself.