# Sliding penny

Classical Mechanics Level 1

A coin of mass $$3~\mbox{g}$$ slides horizontally on the surface of a table. The frictional force exerted on the penny is $$0.0147~\mbox{N}$$. What is the coefficient of friction between the table and the penny?

Details and assumptions

• The acceleration of gravity is $$-9.8~\mbox{m/s}^2$$.
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