I am trying to simulate a trailer to move on a road, I have added motor on one of the wheel, however the calculation in basic motion shows that the trailer will just fly off to random space instead of moving on the road. May I know where should I put the motor too? There is no motion studies required, just a simple moving trailer a long the road and show that it can turn according to the gradient of the road should be fine.
The assembly is as attached and the file name is "Simulation".
Thank you so much in advance.