The figure shows a graph of velocity versus time for a moving object. Which description matches the graph?
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It's a decreasing line, so we can say this object is going slow in a constant velocity.
The description which matches the graph is:
We are given a graph which represents the velocity of a moving object with respect to time.
The graph is a line which is decreasing continuously with the increasing time.
This means that the object is slowing down with the increasing time.
Also, we know that:
If the graph is a line then the slope is always constant.
This means that the acceleration is constant.
( since the ratio of change in velocity to change in time is the acceleration of the object which is the slope of the graph)