You Are Riding an Elevator That Is in Motion

question 27

Multiple Choice

You are riding an elevator that is in motion. Using a spring balance calibrated in newtons, you notice that a 10.0 kg hanging mass reads 120 N on the scale. What is the acceleration of the elevator?

• A) 9.8 m/s² downward
• B) 4.9 m/s² upward
• C) 2.2 m/s² downward
• D) 2.2 m/s² upward
• E) 1.1 m/s² downward

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Definitions:

Crosstabulation

A method of tabulating data that allows for the comparison of two or more variables by creating a matrix that displays their interaction.

Categorical Variables

Variables that represent types or categories that data can fall into; they can be nominal (no specific order) or ordinal (with some order or ranking).

Quantitative Variables

Variables that are measurable and can be expressed numerically, representing counts or measurements.

Categorical Data

Data that can be separated into specific categories according to distinct characteristics that are non-numeric.