When a Car Goes Around a Banked Circular Curve at the Proper

question 79

Multiple Choice

When a car goes around a banked circular curve at the proper speed for the banking angle,what force cause it to follow the circular path?

• A)the normal force exerted by the road on the car perpendicular to the road's surface
• 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:

Variable Cost

Costs that move in correspondence with the quantity of products made or services sold.

Fixed Costs

Expenses that do not vary with production volume or business activity level, such as rent, salaries, and insurance premiums.

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating the extent to which a firm uses fixed versus variable costs.

Variable Cost

Costs that change in proportion to the level of output or activity in a business.