Plane over, say, a second and you are able to first See what the displacement is of the ground and the Well in this frame of reference, let's say you're sitting in this car and I don't recommend youĭoing this while driving, let's say someone else is driving or it's an autonomous vehicle of some kind and you take out your physics instruments with the stopwatch and you Our frame of reference, change the point of view from This type of thing happening and it seems completely reasonably. Would be quite fast, but anyway, you could observe Next to the highway and see, well 50 meters per second
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So let's say this is moving to the left at 50 meters per second. Is over a certain time for the plane and the car and you're able to see okay, look, this plane has a velocity to the right of 250 meters per second, 250 meters per second, and let's say this car that is moving quite fast by car standards is moving to the leftĪt 50 meters per second. Or you see a change in, you see what the displacement Now, what if you take out your instruments for measuring velocity Relative to the ground, what does the ground's velocity look like? Well, you and the groundĪppear to be stationary, appear to not be moving. So from your point of view, since you're stationary Observer on the ground, so you could imagine this is you here and you're the person doing the measuring of let's say we want Reference, this first scenario, we're gonna talk about the frame There's the first one, this is the second one, and this is the third one. Reference we are measuring from and to get this an intuitive grasp of it, I'm going to draw the exact same scenario from three different frames of reference. Like velocity or displacement, they could be differentĭepending on our point of view, depending on which frame of Of the quantities that we might measure in physics, Which you are measuring things and as we'll see, many Is really the idea it's a point of view from Go into a lot more depth, but a frame of reference Of a frame of reference and this is an introductory video.
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Like to do in this video is talk about the notion