Tomorrow, I am going to a physics competition. Each going is going to be given some supplies (I don't know what yet) and we are going to have to make like an anti gravity car. Like a car that moves by itself up an inclined plane. Where can I find some background information or past models on a project like this? Like I want to go in there with good knowledge and be able to come up with the best model. I tried to google it, but couldn't find anything good.