7 ms·
Neat visualization. Am I getting this right? Arrangement 1: Ceiling -- A -- B -- Weight Arrangement 2 (Picture is a bit weird, but both are attached to the
by roundsquare 17y ago
Neat visualization. Am I getting this right?
Arrangement 1:
Ceiling -- A -- B -- Weight
Arrangement 2 (Picture is a bit weird, but both are attached to the ceiling and the weight and not to each other right?):
(Edit: Making picture clearer).
Ceiling -- A -- Weight
Ceiling -- B -- Weight
If thats right... it shouldn't be that surprising. In (1) B has to carry all of the weight, and A has to carry the weight and B (even if B weighs 0 it still has to carry it) so each spring is carrying the weight. In (2) they are in effect sharing the weight.
Its probably easier to think of the action movie scene where William falls off the cliff, Brad catches William but starts falling and Adam catches Brad and holds on. Brad has to hold up William and Adam has to hold them both up. But, if instead, Adam and Brad each took one of William's arms, it would be easier for both of them.
- btilly 17y agoChange the picture for the second to Ceiling -- A -- String -- Weight Ceiling -- String -- B -- Weight and you've got it exactly. Also the reason why it works. Once you understand it the result isn't that surprising. So the physical model provides both more intense initial surprise and also a direct way to visualize the explanation. Which is why I prefer that version. :-)