426
i think he could (lemmy.world)
submitted 9 months ago by zeddiq@lemmy.world to c/memes@lemmy.ml
all 39 comments
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[-] swab148@startrek.website 90 points 9 months ago
[-] BackOnMyBS@lemmy.world 35 points 9 months ago
[-] dipshit@lemmy.world 25 points 9 months ago
[-] Even_Adder@lemmy.dbzer0.com 8 points 9 months ago

Sonic can take the Gs. This is only a problem for humans.

[-] swab148@startrek.website 2 points 9 months ago

More loops necessary, then.

[-] jrwperformance@lemmy.world 56 points 9 months ago* (last edited 9 months ago)

I have one of those giant hamster wheels for our cat. If you use the laser pointer and get her to chase it on the cat-wheel, when she tries to stop when at full speed, she goes all the way around and the wheel spits her out. Funny as hell. Then she goes back for more. Cat loves the wheel.

[-] TheBenCommandments@infosec.pub 20 points 9 months ago

We’re going to need a video of this now. Pay the cat tax.

[-] deez_ballzzz@universeodon.com 8 points 9 months ago

@TheBenCommandments @jrwperformance

Yeaaahhh a video. Pay the tax man. Hand over the video.

[-] octoperson@sh.itjust.works 35 points 9 months ago

The cat is moving in a circle, so it has a centripetal acceleration and a centripetal force. At the apex of the loop, that force is the sum of gravity, and resistance from the track. The track force is greater than or equal to zero, so acceleration due to gravity is less than or equal to the total centripetal acceleration.

g ≤ v²/r
So,
r ≤ v²/g

Taking top speed of a cat as 8.278m/s (from Wolfram Alpha), and g on earth as 9.81m/s², this gives us r ≤ 6.99m. So long as the cat can maintain its top speed all around the loop, it can successfully do a loop of up to 14 meters diameter. This is a lot bigger than I expected, to the extent that I suspect some flaw in my reasoning.

[-] solivine@sopuli.xyz 20 points 9 months ago

The cat won't be able to maintain its top speed because of deceleration from lack of friction

[-] Windex007@lemmy.world 15 points 9 months ago

Claws homie

[-] octoperson@sh.itjust.works 8 points 9 months ago

Good point. It has zero contact force at the apex, so 14m is an upper bound on possible cat-loops.

[-] name_NULL111653@pawb.social 4 points 9 months ago

True. But if top speed allows for 14 meters, surely a 1.5 to 2 m loop should be possible (especially given a cat's incredible reflexes and control given a lack of friction or even freefall). I'd guess that a cat, given enough motivation, could keep running under the little friction provided by the centripetal force for a few hundred milliseconds - likely long enough to complete a 1m loop, maybe even 2, given sufficient space for a top-speed run before entering...

[-] ForgetPrimacy@lemmygrad.ml 2 points 9 months ago

I get the same math... Seems fucky but... This is assuming the sum of centripetal acceleration and gravity at the peak of the loop is zero. It may be physically possible for a cat to learn to manage a loop with such velocity but I imagine a cat wouldn't be able to maintain a stride through a zero-g portion of the loop the first time it tried it.

So, instead let's throw an assumption that the cat must maintain at minimum sum of -1g at the maxima of the loop. That may be badly phrased, assuming the cat must have at minimum a net force of at least one g between it's paws and the surface of the loop it was currently using to accelerate...

3.5 meters = 11.5 feet

Radius, so still a freaking 7 meter diameter loop feels incredible...

[-] nevial@discuss.tchncs.de 34 points 9 months ago

Jpeg compression so bad I read that as "fake mouse on rat"

[-] craftyindividual@lemm.ee 4 points 9 months ago

Oh! So did I

[-] rustycheesi3@lemmy.world 2 points 9 months ago

i was on rat once in my life, worst trip of my life, never again

[-] Kevan@feddit.nl 11 points 9 months ago

It would probably make too much noise, so the cat would stare at it from a distance.

[-] db2@sopuli.xyz 8 points 9 months ago

Yes, provided the chase didn't stop a cat should easily do it.

[-] TootSweet@lemmy.world 7 points 9 months ago

I dunno. Build one and try it with your cat and let us know the results.

[-] hunter2@sh.itjust.works 7 points 9 months ago

Cat expert here. Yes a cat could.

[-] Omega_Haxors@lemmy.ml 6 points 9 months ago* (last edited 9 months ago)

I mean a hedgehog could do it walking slowly, I don't see why I cat couldn't do it running. Context

[-] Mouselemming@sh.itjust.works 5 points 9 months ago

If I'm dangling her Bug-Onna-Leash and my adolescent cat comes running, and I lift up the bug, she'll sometimes do a loopdeloop leap without any track at all, either swatting the bug or grabbing him in her teeth and running off with him. This would be a cakewalk for her.

There are cats who can't jump or run fast or climb, we love them anyway. But to test your theory you need to get the cat to WANT to do it. "What's in it for me?" is their guiding principle.

So it's all going to depend on motivation; the mouse needs to be just bite sized, catnippy, and have a little bell or rattle sewn inside it. You should pull it in an enticingly twitchy way. Treats may also be needed.

[-] Mechanite@lemmy.world 5 points 9 months ago

Cat kinda lookin like Pikachu

[-] MonsiuerPatEBrown@reddthat.com 3 points 9 months ago

i think the cat would wait at the end of the loop for the mouse

[-] JeeBaiChow@lemmy.world 3 points 9 months ago

Build it, record it, post it, and win all of the internet points!

[-] captain_aggravated@sh.itjust.works 3 points 9 months ago

If the loop is carpeted, she sure could.

[-] markstos@lemmy.world 3 points 9 months ago

If the cat was chasing Tony Hawk instead of a mouse, yes.

[-] angrystego@lemmy.world 2 points 9 months ago

My cat does that even without the walkway.

[-] TropicalDingdong@lemmy.world 2 points 9 months ago

At least 3 of my cats could do that, even at low speeds.

[-] NutWrench@lemmy.ml 1 points 9 months ago

"You were so preoccupied with whether or not the cat could, that you didn't stop to think if he would."

[-] markstos@lemmy.world 1 points 9 months ago

If the track is made of wood, yes.

[-] imgprojts@lemmy.ml 1 points 9 months ago

Depends on how fast you toss it in there. LOL.

[-] ComradeChairmanKGB@lemmygrad.ml 1 points 9 months ago

Depends how fat the cat is

[-] Holzkohlen@feddit.de 1 points 9 months ago
this post was submitted on 15 Oct 2023
426 points (97.8% liked)

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