3 ms·
> Gravity I'm sorry but you're either answering a different question than "where do the wheels get their energy from" or extremely confused. We're on a flat p
by yodelshady 5y ago
> Gravity
I'm sorry but you're either answering a different question than "where do the wheels get their energy from" or extremely confused.
We're on a flat plane normal to the direction gravity acts, so I'm going to let you go out and work out how much energy gravity can provide there.
- cblconfederate 5y agoYou 're right, gravity provides the force of friction but not energy. The energy is from the pressure of the wind, the device just makes better use of it compared to a fan-less cart.