Three Solid,uniform,cylindrical Flywheels,each of Mass 65

question 35

Multiple Choice

Three solid,uniform,cylindrical flywheels,each of mass 65.0 kg and radius 1.47 m,rotate independently around a common axis through their centers.Two of the flywheels rotate in one direction at 8.94 rad/s,but the other one rotates in the opposite direction at 3.42 rad/s.Calculate the magnitude of the net angular momentum of the system.

• A)1020 kg ∙ m²/s
• B)1500 kg ∙ m²/s
• C)975 kg ∙ m²/s
• D)940 kg ∙ m²/s

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Definitions:

Contribution Margin Ratio

The proportion of sales revenue that remains after variable costs are subtracted, expressed as a percentage, indicating the contribution towards covering fixed costs and generating profit.

Fixed Expenses

Costs that do not change in total despite changes in the level of business activity or production volume, such as rent or salaries.

Target Net Profit

A financial objective set by a business indicating the desired bottom-line income after all expenses, interest, and taxes have been deducted from total revenues.

Degree of Operating Leverage

A measure of how much a company's operating income changes in response to a change in sales volume, indicating the level of fixed versus variable costs.