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(Ron)^2=-1
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Homework Statement
This is just a general case I'm having trouble trying to imagine:
https://lh3.googleusercontent.com/-mTyOwzfLy0E/VluaNlxEddI/AAAAAAAAAEk/2Creguw3xzY/w530-h174-p-rw/Screenshot%2Bfrom%2B2015-11-29%2B21%253A34%253A50.png
Suppose there is a cylinder, kind of like a yo-yo, that is being pulled by a massless string. The string does not slip and the yo-yo is rolling without slipping on top of a plank, there is no friction between the plank and the horizontal surface.
Homework Equations
Torque, Pure rotating condition
The Attempt at a Solution
My question is: since the plank does slips over the horizontal surface, then Is the velocity of the cylinder's centre of mass = 0 ? (Assuming Tension < Static Friction between the cylinder and the plank)
It's worth mentioning that the problem doesn't say anything about friction between the plank and the yo-yo, but I thought there must be friction because of the rolling without slipping condition
Thank you!