Video Transcript

all rights on this problem. We have a block of ice on a nice, smooth, horizontal frictionless floor. We know the nest of the ice and then a dock. Workers of flying a horizontal force that ice belong. I mean, we know the values of things. Team Sorry. We don't know what the massive balls over song or are able. We do know what the applied forces is. Eighty points. Zero Newtons. Um and so the information they bring a little experiment to figure out what? The mass of the the block ISS. It moves eleven point zero meters at a time interval of five point zero zero seconds. Um, great. Fantastic. In connection Indian part made down here gets so we know that it's experiencing a constant acceleration. Um, So in order to soften the mass will have to first find the acceleration. We have information about the displacements and time interval. So it makes sense to use this kind of attics equation. The one involving the time square. Excellent. Excellent. And then last day, one other piece of information that was given to us was that the block the instrument asked first term on the right hand side is going to be people zeros. Now it can rearrange this King Max equation or to solve for acceleration. Tom, which is to Delta acts over every time squared. All rights were already to plug in numbers nearly eleven point zero meters and then five seconds squared up square on. Then we see the exploration is going to be equal to zero point eight eight zero. But there's a big fears meters per square second. Good line here now. Oh, sorry. That wasn't the whole answer. But it is important for getting the actual fellow answer. Last doings New is applying to the second law, but rearranging in order to solve for the mass that's going to be decided by guided by any a couple days off fix here. And we now have all that information because we saw the acceleration said eighty point zero Newton's and then very similar looking number point eight eight zero meters per score. Second will give us a mass of ninety point zero ninety point nine. Excuse me, um, kilograms of raising it. Um, and now we can move onto you heart Be where? Over the course of the next five seconds. Um, how far does the block travel. So, um yeah, we would call this a second interval Delta t Prime. And then what we're selling for is this second length interval of Delta X Prize is your big question where it's just we really explicit about the information that was given to us in the previous part of the question. Remember, the initial Boston's that is equal to zero I'm in The final velocity is they were have to solve for first in order to figure out that second distance waas. So the equation that will want to use is the equation involving Butte Square. Wait, you have a choice of questions. But I think this thing would just be the easiest. Teo, get the information that we need a cz we said, Oh yeah, thie Initial velocity equals zero. So that term is going to go away, Um, and gets that the final losses Need what? Hiss wary of both sides. All right, snacking plug in some numbers. I'm so excited that I was told it's a zero. Multiply that by Delta X, which was a lot of leaders, and then get a final glass. See wass four point four zero Gators first for a second on DH. Then we can solve for that interval could. It's now going at constant velocities that forces know why we just multiply loss. It's moving at. By that time in the hole splits four point four zero being most played.


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Five five seconds. That gives us a went in her hole, UH, twenty two point zero meters two figures.