Recent content by Exath

  1. Exath

    I Why is T+f=Ma in Cylinder Roll Without Gliding?

    Ah, that's what i was looking for, i was looking at the forces the same way i was looking at torques, that's obviously wrong lol
  2. Exath

    I Why is T+f=Ma in Cylinder Roll Without Gliding?

    So I'm looking at a problem that involves a situation that looks like this the cylinder rolls without gliding. And there are these following equations that apply to it (1) mg - T = ma (for the block hanging vertically) (2) T + f = Ma (for the cylinder f = friction force, T = String force) (3)...
  3. Exath

    Rotation of Rigid Bodies: Rotating stick with disc on top

    Thanks for the help i got the rest from there :D
  4. Exath

    Rotation of Rigid Bodies: Rotating stick with disc on top

    Ah, the inertia should be Icm + Md^2 (d = distance between new axis and center of mass) = 1/2*MR^2 + M*(R + L)^2
  5. Exath

    Rotation of Rigid Bodies: Rotating stick with disc on top

    Ok, so what's left is the inertia for the disk, how would i go about finding that?
  6. Exath

    Rotation of Rigid Bodies: Rotating stick with disc on top

    It also falls like the disk, but counting from the center of mass it would be m*g*(L/2)?
  7. Exath

    Rotation of Rigid Bodies: Rotating stick with disc on top

    Homework Statement [/B] A thin cylindrical rod with the length of L = 24.0 cm and the mass m = 1.20 kg has a cylindrical disc attached to the other end as shown by the figure. The cylindrical disc has the radius R = 8.00 cm and the mass M 2.00 kg. The arrangement is originally straight up...
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