When a Car Goes Around a Circular Curve on a Horizontal

question 63

Multiple Choice

When a car goes around a circular curve on a horizontal road at constant speed,what force causes it to follow the circular path?

• A)the normal force exerted on the car by the road perpendicular to the road
• B)the friction force exerted by the road on the car
• C)the force that Earth exerts on the car
• D)No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration.

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Definitions:

Consumer Surplus

The imbalance between what consumers are willing and financially able to invest in a good or service against what they really spend.

Total Surplus

The sum of consumer surplus and producer surplus in a market, measuring the total net benefit to society from the production and consumption of a good or service.

Free-Trade Policy

Economic policies that eliminate tariffs and trade barriers between countries to encourage trade and economic integration.

Import Quota

A government-imposed restriction on the quantity of a specific good that can be imported into a country.