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:

Goose Decoys

Artificial birds used by hunters to attract real geese into shooting range or by birdwatchers for observation.

Null Hypothesis

A theory that there is no statistical significance between specified populations, any observed difference being due to sampling or experimental error.

Golf Balls

Small, hard balls used in the game of golf, designed with dimples to reduce air resistance and increase distance when hit.

PGA

Professional Golfers' Association, an organization for professional golf players, or a reference to the tour operated by this organization.