The Surface of the Exit Road Is Horizontal,not Banked

question 42

Multiple Choice

The surface of the exit road is horizontal,not banked.(See figure.) If the radius of curvature of a highway exit is 82.5 m and the maximum speed with which the car can exit the highway safely without sliding is 25.2 m/s,what is the coefficient of static friction between the tires and the surface of the road?

• A)0.69
• B)0.85
• C)0.78
• D)0.56
• E)0.72

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Definitions:

Myopia

A common eye condition where close objects appear clearly, but distant ones are blurred, often referred to as nearsightedness.

Random Sample

A selected subset of individuals from a larger population, chosen randomly to represent the population in a statistical analysis.

Odds

The ratio of the probability of an event occurring to the probability of it not occurring, used in probability theory and statistics.

Sample Proportion

The fraction or percentage of the sample that displays a certain trait or characteristic, used as an estimate of the proportion in the entire population.