A Solid Uniform Disk Is Rolling Without Slipping Along a Horizontal

question 13

Multiple Choice

A solid uniform disk is rolling without slipping along a horizontal surface with a speed of 4.5 m/s when it starts up a ramp that makes an angle of $25 ^ { \circ }$ with the horizontal. What is the speed of the disk after it has rolled 3.0 m up as measured along the surface of the ramp?

• A) 4.0 m/s
• B) 1.9 m/s
• C) 2.1 m/s
• D) 8.0 m/s
• E) 6.8 m/s

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Definitions:

Net Operating Income

A measure of a company's profitability calculated by subtracting operating expenses from operating revenues, excluding non-operating income and expenses.

Variable Costing

An accounting method that includes only variable production costs (direct materials, direct labor, and variable manufacturing overhead) in product costs.

Unit Product Cost

The total cost incurred to produce, market, and distribute a single unit of a product.

Variable Costing

This is an accounting method that only includes variable costs—costs that change with production volume—in the calculation of product cost.