Timeline for Does it take less pulling force to unplug cable if the "length" increases?
Current License: CC BY-SA 4.0
8 events
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| May 13, 2023 at 15:04 | comment | added | htmlcoderexe | @NuclearHoagie somewhat different mechanics, but, again, with a sufficiently long (and heavy) cable you can yank it with a short but swift movement perpendicularly to the direction of the cable, which causes a wave to travel up the cable towards the other end and then that wave will apply the same force and pull the plug out as the wave starts reflecting back from the end of the cable. Oh, obviously, don't do that, lol | |
| May 12, 2023 at 16:04 | comment | added | Nuclear Hoagie | Very interesting first point. With a sufficiently long cable, it's possible to unplug it using arbitrarily little applied force simply by accelerating your arm very gently over a long distance, and letting your arm's own momentum pull it out. There's a sudden jerk when the cable goes taut, not sure if that would be characterized as a "pulling" force, though. | |
| May 11, 2023 at 14:38 | comment | added | htmlcoderexe | @Amit thanks for your comment, I agree there are multiple things at work here and I have edited my answer a bit to reflect on that, adding some more thoughts as well. | |
| May 11, 2023 at 14:37 | history | edited | htmlcoderexe | CC BY-SA 4.0 |
additional thoughts regarding possible combination of forces
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| May 11, 2023 at 14:36 | comment | added | DKNguyen | Same way a hammer works. | |
| May 11, 2023 at 14:27 | comment | added | Amit | I think that the correct answer is actually a combination of what DKNguyen pointed out and this answer. What determines the contribution of each I think, is the length of the connector's head which is rigid. Since it is rigid, the shorter this part is, perhaps the effect due to the additional acceleration becomes even more important than that of the misalignment... (suppose no rigid connector at all, I think the tension at the end of the cable will be determined only be the force/acceleration applied, regardless of where along the cable it was applied at) | |
| S May 11, 2023 at 13:50 | review | First answers | |||
| May 11, 2023 at 14:02 | |||||
| S May 11, 2023 at 13:50 | history | answered | htmlcoderexe | CC BY-SA 4.0 |