An 80-Kg Object Moving 4

question 63

Multiple Choice

An 8.0-kg object moving 4.0 m/s in the positive x direction has a one-dimensional collision with a 2.0-kg object moving 3.0 m/s in the opposite direction. The final velocity of the 8.0-kg object is 2.0 m/s in the positive x direction. What is the total kinetic energy of the two-mass system after the collision?

• A) 32 J
• B) 52 J
• C) 41 J
• D) 25 J
• E) 29 J

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Definitions:

Normal Good

A type of good for which demand increases as the income of the consumer increases, showing a direct relationship between income and demand.

Income Elasticity

A measure of how much the demand for a good responds to a change in consumers' income.

Total Revenue

The total income generated by a firm from the sale of goods or services before any costs or expenses are subtracted.

Income Elasticity

A measure of how much the demand for a good or service changes in response to changes in consumer income.