ickplantCheckmate, science
LemmyKnowsBestbecause the truck is self-propelled, and it can only go as fast as it takes itself. Therefore the magnet, which is attached to the truck, can only go as fast as the truck takes itself.
Some guy got hit by an apple and went on to ruin the fun for everyone, jerk.
Me sighing as people akshually comment explaining the obvious in a meme sub. đ
Hey now, Iâm not an engineer So the first time I saw this a few weeks ago it kinda blew my mind and I really had to think it through. Please donât shame people when they need to take a moment to think things through.
Hold up, Iâm not shaming anybody who wants to think things through. Youâre more than welcome to, as you do in your regular day to day. I just think itâs funny that people feel the need to over explain anything and everything on Lemmy even the troll stuff they see in a shitpost, which is very different. Donât overload my comment with a take, please, thatâs not what Iâm doing.
No stupid question
Itâs a troll post in a meme sub. Idk what to tell you⌠Sure, I guess?
What if my hobby is to react dead seriously to troll posts in meme subs
My hobby is to sigh at people who do that. You keep my hobby alive!
LibertyLizardYou realize these are all incorrect right?
Please explain the correct answer
They are connected in the same system. What the truck is doing is the same thing as you holding two magnets together, you wonât go anywhere because everything is self contained.
Edit: this is probably not a very accurate explanation but itâs the way I understand it.
Sure. The magnet applies a force on the metal block, and the metal block an equal force on the magnet. The force is dissipates as tension along the arm. All forces cancel out, so no net force is applied on the body.
If the arm can bend, the car and the magnet could move towards each other until they come together, moving the car at max a few centimeters. If the arm doesnât bend, the car is pulled as much forward as the magnet, and therefore the arm and in turn the car itself, is pulled forward, leaving the whole system stationary.
You realize I responded when there was only one comment, right? đ
Then why use plural people? You pre-emptively complained about something that wasnt much of an issue and then got upset when people got excited about a silly physics puzzle/riddle?
Then why use plural people?
Because it happened in another thread I was reading. Itâs a common pattern on Lemmy. Simple as.
You pre-emptively complained⌠then got upset
I did not pre-empted and I did not âcomplainâ, and I certainly did not get upset đ𤣠What is this.
Youâre just willingly misinterpreting everything I did to paint a warped picture of me. Restrain yourself, please.
So this would work actually but only for a brief second as the electrical current generated by the frame of the vehicle passing through the magnetic field would disrupt the flux conduction in the magnet. This is mostly due to being the way that it is.
HjalmarCould we fix it by constantly increasing the (electro)magnets strength?
Cuz Newton invented conservation of energy /s
Damn newton. He also invented gravity. Thats why we canât fly now!
The magnet and the metal plate pull each other, do all the pull forwards is cancelled out by the pull backwards.
What cracks me up is the piece of metal, labeled metal, attached to the one metric ton of⌠Metal
Itâs to differentiate from the trucks where the front is entirely made of very bring LEDs
Hupfmetric
You sure about that?
bloubzAlso since theyâd want iron specifically
dogsoahCWell, nickel or cobalt should work too, if middle school science memory doesnât fail me.
Indeed, great memory comrade
late_nightWell, the metal sees the magnet and wants to eat it so it move toward it. Itâs the olâ Magnet on a Stick trick and metal is easily fooled.
Cars these days are like 80% plastic crumble zone
Doesnât the Cyber Truck have no crumple zone? It might apply to that.
It doesnât need one, when running over pedestrians you wouldnât want to dent your car now would ya?
/s
KingJalopy Pedestrians are the crumple zone. Itâs revolutionary really.
Because it makes the vehicle too long to park in the average garage or driveway.
Finally, an answer that makes sense.
Wile E Coyote has entered Lemmy.
It will, but why do you want the truck to attract the magnet? Are you going to drive backwards everywhere?
This guy gets it
Cyrus Draegureasy: the metal is pulling the magnet backwards and the magnet moving backwards is pushing the whole truck backwards through the arm.
(explaining things wrong is a fun hobby)
Obviously you used a non ferrous metal.
snooggumsBecause both of the magnetâs poles are pointed at the car and the attraction and repulsion are canceling each other out.
Good old troll physics.
WâŚwait, why is the troll head missing?!?
Looks like people are (re)discovering troll physics
Tinted windows.
Itâs basically the same problem as the sailboat with a fan.
What are you trying to imply?
Just my observation that itâs the same kind of problem and that the effects cancel each other out.
That this silly magnet wonât work, you need a sail and a fan.
Ahh ok. Itâs always the obvious solutions that we miss.
Has anyone tried making the fan blades out of magnets?
The large array of third party lighting fixtures exert photon pressure enough to cancel out the magnetic pull
He knows too much
Patapon EnjoyerMythbusters did a similar one using a fan and a boat. The boat moved.
Backwards.
A_Chilean_CyborgThat one worked because it was just an inneficient way of pointing the fan backwards, the center of mass, as the average of the position of all the mass doesnât move from inside forces, just outside ones, so for the car to move the mass of the magnet and arm would meet to move in relation to the car, because they canât, the car doesnât move too.
Wich is basically just a long way of saying âNewton lawsâ.
Itâs because the magnet is in the vertical position, it needs to be in the horizontal position to properly complete the circuit
MentalEdgeThis is actually kind of how electric motors work and you canât tell me otherwise.
FuglyDuckThe difference is, that the rotor is allowed to move, and theyâre switching coils in the stator to keep it going.
In this system, the force pulling the magnet towards the truck is being negated by the arm fixed to the truck.
If you placed a bunch of electromagnets on the guard rail, that would be more like a motor (technically, a linear motor,)
thatsthejoke.jpg
therealjcdentonYou moron, that would make the car flip, you need to attach it to the back of your car horizontally
You need a magnetic personality to make this work. No personality, no movement. And if you have a personality that pushes things away, the car might explode.