Frank Says That If You Release the String When Swinging

question 30

Multiple Choice

Frank says that if you release the string when swinging a ball in a horizontal circle, the ball flies out in the radial direction defined by the string at the instant you release the ball. John says that it flies out along a tangent line perpendicular to the string, and that it then drops straight down to the ground. Which one, if either, is correct?

• A) Frank, because the centrifugal force is no longer counteracted by the string.
• B) Frank, because balls naturally fly straight out.
• C) John, because there is no centrifugal force.
• D) John, because balls fall straight down when released.
• E) Neither, because although there is no centrifugal force, and the ball's velocity is tangent to the circle at the instant of release, the ball then follows a parabolic trajectory.

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Definitions:

Psychoanalysis

A therapeutic approach and theory of psychological disorders, pioneered by Sigmund Freud, that emphasizes unconscious conflicts and past experiences.

Neuropsychology

Area of psychology in which psychologists specialize in the research or clinical implications of brain–behavior relationships.

Self-Actualization

A concept in psychology referring to the realization or fulfillment of one's talents and potentialities, considered as a drive or need present in everyone.

Free Will

The concept that human beings have the ability to make choices that are not predetermined by external circumstances or internal conditions.