A 025-Kg Ball Attached to a String Is Rotating in a a Horizontal

question 24

Multiple Choice

A 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m. If the ball revolves twice every second, what is the tension in the string?

• A)2 N
• B)5 N
• C)7 N
• D)10 N
• E)20 N

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Definitions:

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating a company’s fixed versus variable costs.

Variable Costs

Charges that adjust in direct proportion to the manufacturing output or the quantity of sales.

Fixed Costs

These are consistent expenses incurred by a business, regardless of production levels or sales volumes, such as rent or salaries.

Profit-Volume Chart

A chart plotting only the difference between total sales and total costs for various levels of units sold.