A 28-Kg Tool Can Move on a Perfectly Smooth Ramp That

question 75

Short Answer

A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. What are the magnitude and direction of the acceleration of this tool if it is sliding (a) up the ram, (b) down the ramp?

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Definitions:

Norepinephrine

A neurotransmitter whose action is similar to that of the hormone epinephrine and that may play a role in depression.

Successive Approximations

In operant conditioning, a series of behaviors that gradually become more similar to a target behavior.

Target Behavior

A specific behavior that is selected for change or intervention in a behavior modification program.

Systematic Desensitization

A behavioral therapy method used to gradually reduce anxiety by having the patient imagine a hierarchy of fears while practicing relaxation techniques.