l> Posted February 9, 2016 Report Share Posted February 9, 2016 Hi everyone! I was thinking about the IA and what I could do and I came up with the idea to find the relation between the coefficient of friction and the angle of inclined plane. However, this seems to be too easy so I thought I could use a small ball and then it would get a little bit more complicated as I would have to include not only potential and kinetic energies but also rotational kinetic energy. What do you think? Is this good enough for HL student? Reply Link to post Share on other sites More sharing options...
kw0573 Posted February 9, 2016 Report Share Posted February 9, 2016 Sounds ok. Are you aware of the difference between rolling with and without slipping? If it slips then friction does more work then required for rotation and you can't use an energy perspective to measure. 1 Reply Link to post Share on other sites More sharing options...
l> Posted February 9, 2016 Author Report Share Posted February 9, 2016 (edited) I actually haven't thought about it. I think the slipping will only occur at high angles, won't it? But now when I think, I'm not really sure how to find that boundary between motion with and without slipping so I have to look for information about it. Maybe you have some ideas? Edited February 9, 2016 by l> Reply Link to post Share on other sites More sharing options...
kw0573 Posted February 9, 2016 Report Share Posted February 9, 2016 https://www.youtube.com/watch?v=OtY0ghBbLpk This video had been immensely helpful when I was learning about rotational motion. If you are unsure about the boundary you can do some experiment to find out. Reply Link to post Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.