Kids Move From Center of Platform To Edge

In this problem we look at a classic piece of playground equipment which - like so many of the greats - is pretty hard to find these days, probably because it was too dangerous. But they were all over when I was a kid in the Midwest and they were AWESOME! A great way for kids to learn about centripetal forces, dizziness, the gyro effect, and even negotiating with your friends and their parents to see who was going to push.