How Can Electromagnets Revolutionize Future Magnetic Cars?

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Electromagnets have the potential to revolutionize future magnetic cars through the concept of magnetic levitation (maglev). Instead of using permanent magnets, integrating electromagnets can provide controlled lift and propulsion, enhancing efficiency and speed. The theory of induced electromotive force (emf) can be applied to create systems that allow vehicles to hover above tracks, reducing friction. This technology could lead to safer, faster, and more energy-efficient transportation options. Researching maglev systems will provide valuable insights for developing your poster on future car designs.
strachi
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I'm a first year undergraduate student in UK and i got to make a poster which will be about a future car.
I thought about magnetic cars but i need some advise on how the whole thing will work.
I mean i thought about making the cars out of iron and use permanent magnets as roads but that's not a really good idea.
How about electromagnets? How can I put all that theory about induced emf into practice for this assignment
can you please explain in detail how it can work?
 
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Moved to Intro Physics.

strachi -- you are referring to magnetic levitation, or maglev. Here's a good starting resource for your research. Have fun!
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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