So we have a diagram here with a fulcrum and whoops, two masses. L one is here, L two is here. Okay, So we're told that L one is 20 centimeters and L two is 80 centimeters. Oops, I do. Okay with the magnitude of the accelerations On particles one and 2. Okay, so um the inertia of this system would be the some of the masses times the distance is squared. Um We I don't think we're told numbers for the mass, but they're the same. So the inertia would be and I'm making this the positive direction anyway, it would be, well the total inertia, it doesn't matter on the direction, it's just going to be some of the M. R squares, which would be mass times L one squared plus mass times all to square. But I'm just going to change that to a factor at the M. Okay, now, um the torque net, this is where I need the direction is going to be um mm times G at L one, So MGL one minus M G L two. And that's going to be I alpha. We're trying to figure out Alpha. So Alpha is going to be factoring out the MG who MG? It's not a not a subscript. L 1 -6 2 over I. But I is M L one squared plus L two. Where'd whoops squared? Uh race? Uh draw. Okay. So Then the acceleration at one is going to be Alpha times the distance to one, which would be L one. The acceleration at two is going to be Alpha Times The Distance to L two. So putting this all together in a calculator. Um I'm going to write, first of all, I'm going to declare L one and L two. And I finally figured out if you just type L one, it puts in a sub script automatically equals 0.2 Okay. L two equals 0.08. Ah While I'm at it, G Is 9.81. Okay. Did I cancel out the ems yet? I did not the M's cancel out. Yeah. So the man says don't really matter. So this is going to be alpha equals G times L one -L. 2. I don't know where my two went. It must have gotten erase. Yeah. L one minus L. Two over hell one squared plus L. Two. Where? Okay, so alpha, that makes sense. It's going in the negative direction. Um So that would be clockwise. Um A one A 1 is going to be alpha alpha L. One And then a two is going to be alpha L. Two. Okay, but something's not right here because definitely a one is accelerating upward. A two is accelerating downward. So a one has to be positive 1.73, And this would be a negative 6.92 m/s squared meters per second squared. We know since it's rotating in this direction because the acceleration was negative, this is accelerating downward and this is accelerating upward. Um All right, so this was the answer to 56. Thank you for watching.