In One-Dimensional Motion Where the Direction Is Indicated by a Plus

question 28

Multiple Choice

In one-dimensional motion where the direction is indicated by a plus or minus sign,the average velocity of an object has which of the following properties?

• A)It is positive.
• B)It is negative.
• C)It is zero.
• D)It can be positive,negative,or zero.

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Definitions:

Normal Curve

A symmetrical, bell-shaped curve that represents the distribution of many physical and psychological attributes.

Distribution

The act of sharing something out among a number of recipients, or the way in which something is spread or dispersed.

Regression Toward

Implies the statistical concept that extreme scores tend to fall back (regress) toward the mean (average) over time.

Mean

In statistics, the average value in a set of numbers, calculated by adding all the numbers and dividing by the total count of values.