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Forces and Motion

Velocity - Time Graphs.

A velocity - time graph shows
how an objects velocity (how fast it is moving) changes with time.

The above graph shows
that the objects velocity does not change as time goes by.
It is constant velocity.
Compare this with the distance - time graph for constant velocity.

The above graph shows
that the objects velocity is increasing as time goes by.
This is acceleration.
The straight line shows that it is constant acceleration.
The slope of the line shows
(i)  the acceleration is positive because the line slopes upwards
(ii)  how fast the acceleration is.

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Copyright © 2008 Dr. Colin France. All Rights Reserved.