Recent content by cvw

Thanks for the replies. Your understanding of the setup was correct and the ball definitely rolls around, rather than skidding. Although the ball didn't do what I expected, it make some kind of sense. The ball sent in at an angle, the round tube still caused the "round and round" motion...

Hi guys, Please could you help with with a puzzling question for a non physics person. I am sure it has a simple answer.Today at the park, my kids and I discovered a strange physical phenomenon while playing with a tennis ball and a large stainless steel tube (the kind you crawl through)...