Roller coasters

Bloggers,

I realize this is a bit late, but here are some really cool site to go along with the post named "Rollar Coasters" (with an A [=) Please look at these sites, they are really cool!

Great one to start off learning the physics and just messing around to see what you can get out of observations.

http://www.funderstanding.com/coaster

Great one to see it action and have a detailed explanation as you go along. Mix and match around and see what you get out of it with an explanation!

http://www.learner.org/interactives/parkphysics/coaster.html

Great website for the final step... SAFETY! Mix around and see how well your audience likes it
-- safety wise!

http://dsc.discovery.com/games/coasters/interactive.html