An 800-Kg Object Is Falling and Experiences a Drag Force Due

question 46

Multiple Choice

An 80.0-kg object is falling and experiences a drag force due to air resistance. The magnitude of this drag force depends on its speed, v, and obeys the equation F_drag = (12.0 N · s/m) v + (4.00 N · s²/m²) v². What is the terminal speed of this object?

• A) 6.45 m/s
• B) 72.2 m/s
• C) 34.2 m/s
• D) 12.6 m/s
• E) 47.3 m/s

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Definitions:

Contribution Margin Ratio

The contribution margin ratio is a financial metric indicating the proportion of sales revenue that exceeds variable costs and is available to cover fixed costs and generate profit.

Fixed Costs

Outlays for rent, salaries, and insurance that are unaffected by variations in the volume of production or sales.

Sales Dollars

A term referring to the total revenue generated from the sale of goods or services, expressed in monetary value.

High-Low Method

A method employed in cost accounting that calculates estimated variable and fixed costs using the highest and lowest activity levels.