If the Acceleration of an Object Is Always Directed Perpendicular

question 61

Multiple Choice

If the acceleration of an object is always directed perpendicular to its velocity, then

• A) the object is speeding up.
• B) the object is slowing down.
• C) the object is moving with a constant velocity.
• D) the object is turning.
• E) this situation would not be physically possible.

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Definitions:

Confidence Interval

A band of numerical estimates, from sample data, seen as likely to include the value of an invisible population characteristic.

Sampling Distribution

The probability distribution of a given statistic based on many random samples from a specific population.

Normal Distribution

A bell-shaped curve that describes the spread of a characteristic throughout a population; it is symmetric and depicts that data near the mean are more frequent in occurrence.

Null Hypothesis

The hypothesis that there is no significant difference or effect, often denoted H0, in statistical hypothesis testing.