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:

Equivalent Unit

A measure used in cost accounting to express the amount of work done on unfinished products in terms of fully completed units.

Weighted-Average Method

An inventory costing method that calculates the cost of goods sold and ending inventory based on the average cost of all similar items in the inventory.

Labor

This refers to the human effort, both physical and mental, used in the production process.

Overhead

The indirect costs associated with manufacturing or delivering a product or service, such as utilities, rent, and administrative expenses.