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Feb24-12, 11:14 PM
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fluidistic's Avatar
P: 3,203
I had stopped that problem, gave up. :(
But now I could retry it. When you say
when the cylinder rotates, the cylinder moves horizontally (since no slip with ground). So even though the particle seems stationary, it also has moved horizontally.
it makes me think I misused the word "slipping" in English (not my native tongue) but I found on the Internet
The wheel rolls without slipping only if there is no horizontal movement of the wheel at the contact point P (with respect to the surface/ground). Thus, the contact point P must also have zero horizontal movement (with respect to the surface/ground).
So I do not understand how can the cylinder move horizontally if there's no slipping. I need some explanation.