A Student Is Sitting on the Right Side of a School

question 41

Multiple Choice

A student is sitting on the right side of a school bus when it makes a right turn. We know that the force of gravity acts downwards and a normal force from the seat acts upwards. If the student stays in place when the bus turns, we also know that there must be

• A) no other force on the student.
• B) a force parallel to the seat directed forward on the student.
• C) a force parallel to the seat directed to the left on the student.
• D) a force parallel to the seat directed to the right on the student.
• E) a force parallel to the seat in a direction between forward and left on the student.

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Definitions:

Median

The central number in a series that divides the upper half from the bottom half.

StdDev

A rephrased term for standard deviation, indicating the degree to which individual data points in a set diverge from the mean value.

Mean

A mathematical average of a set of numbers, calculated by adding them all together and dividing by the number of numbers.

Median

In an arranged sequence of values, the median is the number situated in the middle, thus separating the collection of numbers into two segments.