A Machine Gun Is Attached to a Railroad Flatcar That

question 5

Multiple Choice

A machine gun is attached to a railroad flatcar that rolls with negligible friction.If the railroad car has a mass of 6.25 ´ 10⁴ kg,how many bullets of mass 25 g would have to be fired at 250 m/s off the back to give the railroad car a forward velocity of 0.5 m/s?

• A)400
• B)2 000
• C)3 000
• D)5 000

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Definitions:

Complexes

Psychological concepts referring to a core pattern of emotions, memories, perceptions, and wishes in the personal unconscious organized around a common theme.

Introversion

A personality quality that prioritizes internal experiences over external factors for stimulation.

Extraversion

A personality trait characterized by outgoingness, sociability, and a preference for external stimulation.

Environmental Influences

External factors or conditions that affect an individual's development, behavior, and personality.