A 640-N Acrobat Falls 5

question 89

Multiple Choice

A 640-N acrobat falls 5.0 m from rest into a net.The net tosses him back up with the same speed he had just before he hit the net.The average upward force exerted on him by the net during this collision is:

• A)32 N
• B)64 N
• C)320 N
• D)640 N
• E)impossible to determine from given data

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Definitions:

Dopamine

A neurotransmitter that plays several important roles in the brain and body, including movement, motivation, and the reinforcement of rewarding behaviors.

Reward System

A motivational tool used within organizations where employees are recognized and rewarded based on their performance or achievements.

Brain Activity

The functioning of the brain involving electrical impulses, chemical reactions, and neural connections, which can be monitored and measured through various techniques.

Psychoactive Drug

A chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior.