/sci/ - Science & Math

if you can't work it out, you don't belong on sci

so you best be trollin. gtfo

tl;dr

bampan

bampan 2

>scifags don't actually know the answer

sometimes i want to cry when I see these...
your mass will restrict the thing moving as there is no initial velocity.
all in all. shit won't work. Unless magnet is somewhere else in the room and it's a super fucking magnet

Hey OP i made you this TRIPCODE :D

#*;{BlV|V It belongs to you now :)

>>1144945
The skateboard goes towards the magnet, the magnet goes towards the skateboard. Every action has an equal and opposite reaction. Momentum is conserved. Then they either hit each other and the iron stops the magnet whilst the magnet stops the iron (action/reaction, conserving momentum), or else the magnet is held away from the iron by the fishing rod. In that case the fishing rod needs to be pulling the magnet away from the iron, such that the forces from the fishing rod and the magnetic attraction add to zero (action/reaction). Since the fishing line is pulling the magnet away from the iron, it is pulling the fishing rod towards the iron (action/reaction), which pushes the person on the skateboard backwards. This backwards force exactly equals the forward force of the iron towards the magnet (action/reaction) and thus they both stop (conserving momentum).

You'd do better by throwing the magnet and iron off the skateboard behind you, then you'd gain momentum. Unfortunately it wouldn't be much, and would quickly be transferred to atoms in the ground and the wheels, making them vibrate more (ie. heat up).

>>1145034
Ooookay..

Ok first off there is a limit to how strong ferromagnets can be
Secondly if the magnet was strong enough it would just stick to the metallic surface, not pull it

Nice pic! At least it's funny, not like the casual trolls :D

>>1145034
This^^ and also the size of magnets you would need for this to work at an appropriate speed would be ridiculous and expensive. This whole idea of using magnets for transportation is bullocks. Also inb4 the OP using the troll excuse because he was too dumb to realize this so then he just pretends to troll everyone to make it valid.

>>1144945
As for the fridge, the metal moves towards the magnets and the magnets move towards the metal. In total there is no movement, the whole lot stays where it is but just shrinks a little bit horizontally.

This shrinking makes the negatively charged electrons in all three closer together. Negative charges repel due to electrostatics, and due to space having 3 dimensions the force keeping them apart increases by a factor of 4 each time the distance between the electrons is halved. This quadratically increasing force quickly matches the feeble magnetic force pulling the electrons together, and an equilibrium is reached.

In fact, taking off the magnets from the fridge will cause the door to open more than having them on there! Imagine there were a powerful magnet attached to your fridge door, and you try to pull it off...

Everything is all relative... As soon as the magnet starts to pull you the inertia is countered in the opposite direction.

You are trying to move relative to yourself.

You can cheat by using magnets to propel metal bbs at lightspeed behind you and moving from recoil energy

OR

have the magnets on the ground and make sure South faces South so you hover above repelling magnetic forces.

in the first figure in >>1144945, dont we need to account the gravity which pulls the magnet away the iron?

>>1145106
away from the iron

>What's the actual scientific reason why does DOESN'T work?

wat

Guys, stop debunking it. For god's sake, it has 4chan and EFG in it. Cool OC though OP, I approve.

>>1145031