00:01
This is a true or false question.
00:04
Is it true that a line with zero slope on a velocity time graph represents an object that is at rest? so we have a velocity time graph and there is a line with zero slope.
00:23
So let's say it is right here.
00:28
We can agree that this line has zero slope because there's no change in our y as the time goes on.
00:36
So our change in y over change in x is zero.
00:41
So this is how we can determine that our slope is zero.
00:47
And a good way to remember this is just if you see a horizontal line, the slope of that line is zero.
00:53
So in this case we have a horizontal line, the slope is zero.
00:55
Does this represent an object that is at rest? well, initially you might think, well, the slope is zero, the acceleration is zero, so must be at rest.
01:05
And that's true that the acceleration is zero because the slope of a velocity time graph represents the acceleration.
01:12
So the acceleration of this case is zero.
01:14
But is it true that the object is at rest? well, it turns out that if we look over here, there is actually a positive velocity...
