A Roller-Coaster Car Has a Mass of 500 Kg When

question 9

Multiple Choice

A roller-coaster car has a mass of 500 kg when fully loaded with passengers.The car passes over a hill of radius 15 m,as shown.At the top of the hill,the car has a speed of 8.0 m/s.What is the force of the track on the car at the top of the hill?

• A)7.0 kN up
• B)7.0 kN down
• C)2.8 kN down
• D)2.8 kN up
• E)5.6 kN down

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Definitions:

Normal Goods

Goods for which demand increases when consumer income rises, and decreases when consumer income falls.

Consumption

The use of goods and services by households or individuals, constituting one of the primary components of an economy's aggregate demand.

Consumer Preferences

The inclinations or choices of individuals or groups regarding various goods and services that reflect taste, convenience, affordability, and other factors.

Marginal Rate of Substitution

The rate at which a consumer is willing to give up one good in exchange for another, keeping utility constant.