A 24-Kg Ball Falling Vertically Hits the Floor with a Speed

question 36

Multiple Choice

A 2.4-kg ball falling vertically hits the floor with a speed of 2.5 m/s and rebounds with a speed of 1.5 m/s. What is the magnitude of the impulse exerted on the ball by the floor?

• A) 9.6 N s
• B) 2.4 N s
• C) 6.4 N s
• D) 1.6 N s
• E) 1.0 N s

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Definitions:

Gross Profit

Gross profit is the difference between the sales revenue and the cost of goods sold, illustrating how much a company earns from selling its products before other expenses are deducted.

Cost Of Goods Available

The total cost of merchandise a company has for sale, which includes the beginning inventory plus the cost of goods purchased minus ending inventory.

Ending Inventory

The total value of all the goods that a company has in stock at the end of its accounting period.

Cost Allocation

The process of identifying, aggregating, and assigning costs to cost objects such as products, services, or departments.