hi, i'm doing a little research and in need of help since i'm not so talented in physics.. :( Is it possible to attach 2 cars with magnetic force so that they can be driving as one? (one car in the front and another car behind) I think it can be done with magnetic force but how.. Also, Is it possible to control the magnetic force so that when wanted, the 2 cars can separate while driving? I wanted to know the way of making this happen in the future without using some mechanism like using hooks. quick help would be appreciated! Thank you!