4 ms·

The tension in the rope is greater than 30lbs, yet only one weight moves? I give up.

• lazyant 16y ago
  sorry; I made an edit with a clarification. Basically if the weights are at rest on the floor then mkn's answer is the correct one. If they are at rest on the air, then my answer is the correct one.
  • loup-vaillant 16y ago
    No: http://news.ycombinator.com/item?id=1659676 http://news.ycombinator.com/item?id=1659676 (this comment assumes that the weights are unsupported).
    • lazyant 16y ago
      I supposed the system was at equilibrium without making the numbers. If it's not (as it seems) then sure, my reasoning is invalid and he's right, no problem.