- #1
CEJ__
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Hello:
In my readings a question has come up in my mind about a ball that is rolling. Say you have a pool ball on a billiards table and you examine it immediately after impact. It's going to be sliding along the table. But at some point, it's going to stop sliding and (ideally) start rolling without slipping. What happens at that point that causes it to start rolling?
I'd imagine that it has a lot to do with the strength of the frictional force, but the frictional force has to overpower something else. If, for example, you had a table of ice, the ball would slip for a very long time because the force of friction is so small. And, conversely, if you have an extremely rough surface the ball would start rolling rather quickly.
So, again, what happens at the time that the ball begins to roll?
Thanks,
-CEJ
In my readings a question has come up in my mind about a ball that is rolling. Say you have a pool ball on a billiards table and you examine it immediately after impact. It's going to be sliding along the table. But at some point, it's going to stop sliding and (ideally) start rolling without slipping. What happens at that point that causes it to start rolling?
I'd imagine that it has a lot to do with the strength of the frictional force, but the frictional force has to overpower something else. If, for example, you had a table of ice, the ball would slip for a very long time because the force of friction is so small. And, conversely, if you have an extremely rough surface the ball would start rolling rather quickly.
So, again, what happens at the time that the ball begins to roll?
Thanks,
-CEJ