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:

Industrial Regulation

Government rules or laws designed to control business practices, market conditions, and protect consumers within specific industries.

State And Local Governments

The regional and municipal levels of government within a country, responsible for local decision making and public services.

Social Regulation

Rules imposed by government to correct market failures and promote social welfare, often relating to health, safety, and the environment.

Decreases Product Innovation

A situation where there is a decline in the introduction of new products or improvements to existing ones, often due to market conditions or external constraints.