๐งต Untitled Thread
Anonymous at Sat, 7 Sep 2024 07:21:05 UTC No. 16365448
Can a rope placed horizontally like in the pic ever be truly straight? Gravity acts on it pulling it towards the earth therefore there has to be a force which counteracts the force of gravity. I don't see which force does that job other than the tension in the rope, but that tension has to have a nonzero vertical component, and that's only possible if the rope is slightly bent downwards.
Am I being retarded here?
Anonymous at Sat, 7 Sep 2024 07:30:47 UTC No. 16365457
yeah it can never be truly straight
Anonymous at Sat, 7 Sep 2024 07:57:01 UTC No. 16365485
>>16365448
Show me a thing that's truly straight and ill show you a rope that's straighter than that.
Anonymous at Sat, 7 Sep 2024 08:20:06 UTC No. 16365496
>>16365485
well I'm as straight as one can be
Anonymous at Sat, 7 Sep 2024 10:28:21 UTC No. 16365638
You could do it in outer space.
Anonymous at Sat, 7 Sep 2024 22:14:49 UTC No. 16366674
>>16365448
That's easy, just pull it from both ends
Anonymous at Sat, 7 Sep 2024 22:21:31 UTC No. 16366697
>>16365448
>placed horizontally
You can pull it perfectly straight with your hands, or spanned between two cranes. Also, it will be perfectly straight if placed on a perfectly straight surface, which humans in principle can manufacture.
Every plank you buy in a home improvement store is more perfectly straight than it is convex, so if you place it on such a wooden plank, the rope will also be "perfectly" straight.
If you just lay it on the ground, as in something that is directly connected to the Earth below, it will never be totally straight, yes.
Anonymous at Sat, 7 Sep 2024 22:23:11 UTC No. 16366698
>>16366697
would a long enough rope under tension experience waves like the ocean?
Anonymous at Sat, 7 Sep 2024 22:36:28 UTC No. 16366719
>>16366674
Wouldn't the pulling force have to increase the closer it gets to a straight line?
Anonymous at Mon, 9 Sep 2024 11:05:25 UTC No. 16369491
>>16365448
why the fuck am I on /sci/ again? the rope is like the OP a faggot. it never will be straight.
Anonymous at Tue, 10 Sep 2024 04:23:45 UTC No. 16371100
>>16365448
>nonzero vertical component, and that's only possible if the rope is slightly bent downwards.
A rope with nonzero thickness can have vertical components internally, even when straight.
So in theory, it is possible.
Ignore the retards who say it isn't.
Anonymous at Wed, 11 Sep 2024 14:00:07 UTC No. 16374240
>>16365638
No you couldnt moron. Gravity acts on everything over an infinite distance it just drops off due to inv. square law.
Anonymous at Wed, 11 Sep 2024 20:31:46 UTC No. 16374808
>>16365448
>Can a rope placed horizontally like in the pic ever be truly straight?
No, it will always form into a section of a catanary curve.