You just use rotational variables instead. Final squared is equal to be initial squared, plus to a delta D and likewise the rotational version. So that is enough, given one of the four China Matics equations to figure out what the, uh, angular, exciting acceleration is, um so there there is a kin Max equation. And if we look at what we have here, we have, um an initial rotational velocity of final rotational velocity and a distance traveled. So we have the mass of it, we have its mass and we have its radius so we can get its moment of inertia, but we don't have Alfa, so we have to figure out how to do that. Um, and we're trying to find the torque that this record player provides for it. The moment of the nurse report is 1/2 m r squared. So since a record player is a disc a solid disc, um, you look it up. So it's good to establish what the moment of inertia is for this body, Uh, that we're dealing with. So we know that we're gonna be dealing with the moment of inertia. So we're going to be dealing with the equation of torque is equal to I Alfa. So we're dealing with, you know, Newton's second law of rotation emotions. And I believe that's everything that it tells us. Ah, Delta Fada is equal to four pi radiance. Um, we also have that the it gets that the record player gets up to full speed in two rotations. So Omega Final and it tells us that that is 3.49 radiance per second. Uh, it gives it and ratings for second, which is really nice. So we know that that zero so omega not equals zero and its final rotational speed. Next we have the initial rotational speed. So if we divide that by two, we get 15.25 centimeters and that if we change that two meters, we get that the radius is 0.1525 meters. Um, we're given the diameter, which is 30.5 centimeters, but it will be actually more useful to have the radius. So, for instance, were told that the mess is equal to 0.22 kilograms. So let's go ahead and write down all of the variables that we know. So we're giving them a bunch of information about this record player and how fast it's going and its mass and stuff. Ah, applying to the records, making speed up and given the values that we have. Um, and we're supposed to figure out how strong the torque is. All right, so in this question, we have a turntable that starts at rest, and, uh, it speeds up to a certain speed.
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