A 20-Kg Projectile Moves from Its Initial Position to a Point

question 3

Multiple Choice

A 2.0-kg projectile moves from its initial position to a point that is displaced 20 m horizontally and 15 m above its initial position.How much work is done by the gravitational force on the projectile?

• A)+0.29 kJ
• B)-0.29 kJ
• C)+30 J
• D)-30 J
• E)-50 J

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Definitions:

Industrial Psychologist

A professional who applies psychological theories and principles to understand human behavior in workplaces, aiming to improve employee well-being and organizational efficiency.

Skinner

B.F. Skinner was an American psychologist and behaviorist who developed the theory of operant conditioning, focusing on how behavior is influenced by its consequences.

Conditioned Emotional Responses

Emotional reactions that have been learned through classical conditioning, such as fear or joy associated with specific stimuli.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is initially elicited by the second stimulus is eventually elicited by the first stimulus alone.