A 25-G Ball Is Released from Rest 80 M Above

question 25

Multiple Choice

A 25-g ball is released from rest 80 m above the surface of the Earth. During the fall the total thermal energy of the ball and air increases by15 J. Just before it hits the surface its speed is

• A) 19 m/s
• B) 36 m/s
• C) 40 m/s
• D) 45 m/s
• E) 53 m/s

---

Definitions:

Contribution Format

A way of presenting income statements where costs are divided into variable and fixed categories, highlighting the contribution margin.

Income Statement

A financial statement that shows a company's revenues, expenses, and profitability over a specified period of time.

Break-Even Point

The break-even point is the level of production or sales at which total revenues equal total costs, and there is no profit or loss.

Dollar Sales

The total monetary amount of products or services sold by a company, typically measured within a specific period.