Three Identical Blocks Move Either on a Horizontal Surface, Up

question 17

Multiple Choice

Three identical blocks move either on a horizontal surface, up a plane, or down a plane, as shown below. They all start with the same speed and continue to move until brought to rest by friction. Rank the three situations according to the mechanical energy dissipated by friction, least to greatest.

• A) The same for all cases
• B) 1, 2, 3
• C) 1, then 2 and 3 tie
• D) 3, 2, 1
• E) 2, 1, 3

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Definitions:

Motivation

The internal and external factors that stimulate desire and energy in people to be continually interested and committed to a job, role, or subject, or to make an effort to attain a goal.

Psychoanalytic Theory

A set of theories originating from the work of Sigmund Freud, focusing on unconscious motivations and conflicts as drivers of human behavior.

Neodissociation Theory

A psychological theory suggesting that during hypnosis, consciousness is divided or dissociates into different streams, allowing for activities and experiences to occur independently of each other.

Posthypnotic Amnesia

A condition where individuals are unable to recall events or information obtained while under hypnosis, once they come out of the hypnotic state.