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Classical Mechanics Level 5

A solid metallic sphere of mass $$m$$ and radius $$R$$ is free to roll (without sliding) over the inclined surface of a wooden wedge of equal mass $$m$$. Wedge lies on a smooth horizontal floor. When the system is released from rest, find the force between sphere and wedge.

If $$f = \dfrac{m}{n}mg$$, give your answer in the form of $$\dfrac{n}{m}+m+n$$

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