# A pair of pliers

The figure shows a simple model of a pair of pliers consisting of two handles of length $$L=10~\mbox{cm}$$, a semicircle of radius $$R=4~\mbox{cm}$$, a fulcrum (point O) and the jaws having a radius of curvature $$r=1~\mbox{cm}$$. Using these pliers, you grab a coin and apply a force $$F=10~\mbox{N}$$ to the handles as shown in the figure. What is the force $$f$$ in Newtons pressing on each side of the coin? You may neglect the thickness of the coin.

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