The diagram shows a velocity-time graph for a car moving in a straight line.At point P the car must be: 
Definitions:
Mean
In statistical terms, the mean refers to the average of a set of numbers calculated by adding all the numbers together and then dividing by the count of those numbers.
Cross-sectional Method
A research design that compares different population groups at a single point in time.
Different Ages
Refers to the diversity of age groups within a population, each having unique physical, psychological, and social characteristics.
Intellectual Change
The evolution or transformation in cognitive functions and processes, such as thinking, reasoning, and understanding.
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