A Machine Gun Is Attached to a Railroad Flatcar That

question 54

Multiple Choice

A machine gun is attached to a railroad flatcar that rolls with negligible friction.If the railroad car has a mass of 6.35 × 10⁴ kg,how many bullets of mass 35.0 g would have to be fired at 200 m/s off the back to give the railroad car a forward velocity of 0.56 m/s?

• A)5.1E-4
• B)2.0E+3
• C)6.5E+5
• D)5.1E+3
• E)6.5E+4

---

Definitions:

Governmental Elections

The structured process through which citizens of a political entity select individuals to hold public office and contribute to governance.

Liberals

Individuals or groups advocating for policies that emphasize individual rights, social equality, and a supportive role for government.

Libertarians

Individuals who advocate for minimal government intervention in the personal and economic lives of citizens, emphasizing individual liberty and free-market principles.

Economic Inequality

The unequal distribution of wealth, income, or resources across different participants in a society, economy, or country.