Time and put them all together, then we have constructed And so, if you put photos of this rabbit at every single instant of That, and if you put them over here, then even those rabbits will be on that same straight line. 5 second, 1.5 second, 2.5 seconds, and if we did That we took the photos at every second interval, right? But there's no reason to do that. Is changing its speed, then this wouldn't be a straight line. And that is, it's coveringĮqual distances every second. Our rabbit is moving in a uniform motion meaning Notice that all these rabbits are lying on a straight The distance-time graph because it's giving me the distance of the rabbit from the zero mark. Tells me the position of the rabbit at every instant of time, this graph is usually called This picture tells you where the rabbit is at every instant of time. And this picture was taken at one second, so let's mark that at the bottom. Let's take another pictureĪnd keep it to the right. When it hits one second, we'll pause again, here goes, paused. So we'll pause for every second and we'll take a picture like this. Excellent, now we'll play the video and we'll pause again when Oh, it's coming on top of the rabbit, let's move this thing a This picture is taken at time to equal to zero, we'll put a zero over here somewhere at the bottom. So let's do that, let's take a picture, there it is, and since So right now our timer is zero, and when I play this video, Important to understand how fast something is moving, Rabbit comes at this position, zero, we will pause the And let's only focus on the rabbit first. It will be easy to keep track of location. But before we do that, let's put some markings on this track. Here, let's take an exampleĪnd it'll make a lot of sense. This motion at different different moments in timeĪnd stitch 'em together. In physics this picture isĬalled a position-time graph and the secret to drawing such a picture is we take photos of In a single picture, not an animation, but a single picture. That both are moving and that the snail is movingįaster than that rabbit, all of that information But in this video, we'll see how to put this entire information And we could easily tell that because we're looking at an animation. Clearly the snail wasįaster than the rabbit. This race between a snail and a rabbit and see if youĬan tell which one was faster.
0 Comments
Leave a Reply. |