- #1
TFM
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Homework Statement
A yo-yo rests on a level surface, as shown below. A gentle horizontal pull is exerted on the cord so that the yo-yo rolls without slipping. In which direction does it roll and why?
Homework Equations
N/A
The Attempt at a Solution
Firstly, the yoyo will go in the opposite direction
My idea is that the string goes around the yoyo, and the weight of the string doesn't effect the bottom of the yoyo, because the weight of the string isn't on the yoyo, but on the top, the weight is. The string at the top is going in the opposite direction, so the force from the string will rotate the yoyo in the opposite direction as the string, and thus the yoyo will move in the opposite direction.
Does this make sense? Are there any formulas that may help prove my point?
Thanks,
TFM