This is a computer simulation of a pallet of wood being dropped on a car to visually compare the effect of gravity on different planets in our solar system. Is it accurate? Hell if I know. It was fun to watch though. And if it is accurate, I actually learned a lot by watching it. Mostly, that somebody should really hire Uranus to crush cars at the junkyard.
Keep going for the video, which ends with the sun, which looks like it would be hard to stand on.