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

question 2

Multiple Choice

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

• A)the normal force from the road
• B)the friction force from the road
• C)gravity
• 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:

Aluminum Concentrations

The measured levels of aluminum in a given sample or environment.

Test Statistic

A statistic used to estimate the parameter of interest in a statistical hypothesis test.

Kruskal-Wallis Test

A nonparametric statistical test used to compare three or more groups based on ranked data. It is an extension of the Mann-Whitney U test for more than two groups.

Null Hypothesis

The hypothesis in statistical analysis that proposes there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.