- rXmv, ice skater pulls their arms in, small r, fast rotation... debris in the universe pull into planets but.... smallest planets spin slowest? and the largest Jupiter spins the fastest?? What???
Ok, I know there are a lot of strange things in our solar system. Can anyone explain why the small planets spin so slowly? and why does Jupiter spin so quickly? It seems like a ball of debris, getting smaller and smaller, would increase its speed like an ice-skater pulling their arms in? rXmv+Mdt = rXmv. What moments are there? seems like gravitational forces are all acting on the center of mass, so there would be no "r", no reason for other planets to influence one another's rotational speeds as those are all center to center forces?