May I ask you where you learned physics? You have some interesting concepts that all break the law of physics. Just wondering who is teaching this stuff?
Please explain why the idea of adding a generator trailer breaks the law of physics. It has actually been done by DIYers. What's missing is commercial investment into that technology.
Help me understand what it is you are trying to do by adding a generator trailor? Are you thinking as the car travels down the road the generator will produce electricity to power the car as in a perpetual motion machine? Yup, that violate the laws of physics.
Don't be silly!
There is no such thing as a "generator trailer" which gets its power from the wheel's rotation.
Generator trailer means a generator driven by a ICE .
This would provide electric power to either supply the actual motor requirements, or to recharge the EV batteries, or both.
There would be an obvious increase in the amount of mechanical power needed to move the thing along the road, just like any trailer, but any reduction in range from that would be a small downside compared to the convenience of increasing the vehicle range.
Ummm up until the mid 1950s all cars had generators. Must not have been then sillily.
Sorry, but all the generator in the car did, was to use a bit of the power available from the engine to charge the battery, which in turn was needed to run the electrical system.
OK, in practice, the generator produced enough power to operate all that stuff, whilst the battery, once recharged ater starting the engine, was pretty much on a "float" charge.
This is exactly what the alternator still does.
What was "silly" was your "perpetual motion" comment----nobody expected the generator to use power from the EV, & then re-use the same power to drive it.
In any normal use, a "Generator Trailer" is a "standalone" device which uses an internal combustion engine to drive a generator ( usually in real life, an alternator, but common usage still says "generator").
TV stations use such things for OBs in places where Mains power is either not available or erratic.
Campers use very small hand carried versions of the same thing.
The idea being floated was to use a mid sized version, wired to the EV, to create a poor copy of a Hybrid.
I don't think it is workable, either, but that has more to do with pure usability, rather than physical laws.