Question

Velocity-time graphs​

Answer 1

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. ... If the acceleration is negative, then the slope is negative (i.e., a downward sloping line).

Answer 2

A velocity-time graph shows the speed and direction an object travels over a specific period of time. Velocity-time graphs are also called speed-time graphs. The vertical axis of a velocity-time graph is the velocity of the object. The horizontal axis is the time from the start.
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