A Spring-Powered Dart Gun Is Unstretched and Has a Spring

question 35

Multiple Choice

A spring-powered dart gun is unstretched and has a spring constant 12.0 N/m. The spring is compressed by 8.00 cm and a 5.00 gram projectile is placed in the gun. The velocity of the projectile when it is shot from the gun is

• A) 1.52 m/s.
• B) 2.54 m/s.
• C) 3.92 m/s.
• D) 4.24 m/s.
• E) 5.02 m/s.

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Definitions:

Marginal Product

The increase in output that results from employing one more unit of a particular input, holding all other inputs constant.

Explicit Costs

Direct, out-of-pocket expenses paid by firms for inputs to production, such as wages, rent, and materials, as opposed to implicit costs which are not directly paid out in cash.

Implicit Costs

The opportunity costs that are not directly paid for or incurred during the production of a good or service.

Average Total Cost

The complete expenditure of manufacturing (incorporating steady and fluctuating expenses) divided by the aggregate volume of goods produced.