A 010-Kg Ball,traveling Horizontally at 25 M/s,strikes a Wall and Rebounds

question 28

Multiple Choice

A 0.10-kg ball,traveling horizontally at 25 m/s,strikes a wall and rebounds at 19 m/s.What is the magnitude of the change in the momentum of the ball during the rebound?

• A)1.2 kg ∙ m/s
• B)1.8 kg ∙ m/s
• C)4.4 kg ∙ m/s
• D)5.4 kg ∙ m/s
• E)72 kg ∙ m/s

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Definitions:

Precautionary Demand

The desire to hold cash or liquid assets to guard against unexpected events.

Payments to Vendors

Money transfers made by a business to its suppliers for goods or services received.

Demand Deposit

Bank accounts that allow the holder to withdraw funds without prior notice, such as a checking account.

Marketable Securities

Financial instruments that can easily be sold or converted into cash at a value close to their market rate.