The Diagram Shows a Velocity-Time Graph for a Car Moving

question 6

Multiple Choice

The diagram shows a velocity-time graph for a car moving in a straight line.At point Q the car must be:

• A)moving with zero acceleration
• B)traveling downhill
• C)traveling below ground-level
• D)reducing speed
• E)traveling in the reverse direction to that at point P

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Definitions:

Explanatory Variable

A variable in statistical analysis that is believed to influence or cause changes in another variable, often tested for effect.

Regression Analysis

A set of statistical processes for estimating the relationships between a dependent variable and one or more independent variables.

Confidence Interval

An estimate of an interval in which a population parameter lies, based on sample data, with a specified level of certainty.

Body Fat

A component of the body that consists of stored fat and is essential for normal physiological and metabolic functions.